[34/50] staging: vchi: Get rid of struct vchi_service

Message ID	20200623164235.29566-35-nsaenzjulienne@suse.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=C9iy=AE=lists.infradead.org=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 9BC6E2076E From: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> To: gregkh@linuxfoundation.org Subject: [PATCH 34/50] staging: vchi: Get rid of struct vchi_service Date: Tue, 23 Jun 2020 18:42:20 +0200 Message-Id: <20200623164235.29566-35-nsaenzjulienne@suse.de> In-Reply-To: <20200623164235.29566-1-nsaenzjulienne@suse.de> References: <20200623164235.29566-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 summary: Content analysis details: (-4.2 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [195.135.220.15 listed in wl.mailspike.net] -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [195.135.220.15 listed in list.dnswl.org] -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders Precedence: list Cc: devel@driverdev.osuosl.org, kernel-list@raspberrypi.com, linux-kernel@vger.kernel.org, Nicolas Saenz Julienne <nsaenzjulienne@suse.de>, laurent.pinchart@ideasonboard.com, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" <linux-arm-kernel-bounces@lists.infradead.org> Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org
Series	staging: vchiq: Getting rid of the vchi/vchiq split \| expand [00/50] staging: vchiq: Getting rid of the vchi/vchiq split [01/50] staging: bcm2835: Break MMAL support out from camera [02/50] staging: mmal-vchiq: Allocate and free components as required [03/50] staging: mmal-vchiq: Avoid use of bool in structures [04/50] staging: mmal-vchiq: Make timeout a defined parameter [05/50] staging: mmal-vchiq: Make a mmal_buf struct for passing parameters [06/50] staging: mmal-vchiq: Fixup vchiq-mmal include ordering [07/50] staging: mmal-vchiq: Fix client_component for 64 bit kernel [08/50] staging: mmal-vchiq: Always return the param size from param_get [09/50] staging: mmal-vchiq: If the VPU returns an error, don't negate it [10/50] staging: mmal-vchiq: Fix formatting errors in mmal_parameters.h [11/50] staging: vchiq_arm: Add a matching unregister call [12/50] staging: vchi: Get rid of all useless callback reasons [13/50] staging: vchi: Get rid of vchi_msg_peek() [14/50] staging: vchi: Get rid of struct vchi_instance_handle [15/50] staging: vchi: Unify struct shim_service and struct vchi_service_handle [16/50] staging: vc04_services: bcm2835-audio: Use vchi_msg_hold() [17/50] staging: vchi: Get rid of vchi_msg_dequeue() [18/50] staging: vchi_common: Get rid of all unused definitions [19/50] staging: vchi: Get rid of unnecessary defines [20/50] staging: vc04_services: Get rid of vchi_cfg.h [21/50] staging: vchi: Get rid of flags argument in vchi_msg_hold() [22/50] staging: vchi: Use enum vchiq_bulk_mode instead of vchi's transmission flags [23/50] staging: vchi: Use vchiq's enum vchiq_reason [24/50] staging: vchi: Get rid of effect less expression [25/50] staging: vchiq: Introduce vchiq_validate_params() [26/50] staging: vchiq: Move message queue into struct vchiq_service [27/50] staging: vchiq: Get rid of vchiq_util.h [28/50] staging: vchi: Expose struct vchi_service [29/50] staging: vchiq: Export vchiq_get_service_userdata() [30/50] staging: vchiq: Export vchiq_msg_queue_push [31/50] staging: vchi: Get rid of vchiq_shim's message callback [32/50] staging: vchiq: Don't use a typedef for vchiq_callback [33/50] staging: vchi: Use struct vchiq_service_params [34/50] staging: vchi: Get rid of struct vchi_service [35/50] staging: vchiq: Pass vchiq's message when holding a message [36/50] staging: vchi: Rework vchi_msg_hold() to match vchiq_msg_hold() [37/50] staging: vchiq: Unify fourcc definition mechanisms [38/50] staging: vchi: Get rid of struct vchiq_instance forward declaration [39/50] staging: vchi: Don't include vchiq_core.h [40/50] staging: vchiq: Get rid of unnecessary definitions in vchiq_if.h [41/50] staging: vchiq: Make vchiq_add_service() local [42/50] staging: vchiq: Move definitions only used by core into core header [43/50] staging: vchi: Get rid of vchi_bulk_queue_receive() [44/50] staging: vchi: Get rid of vchi_bulk_queue_transmit() [45/50] staging: vchi: Move vchi_queue_kernel_message() into vchiq [46/50] staging: vchiq: Get rid of vchi [47/50] staging: vchiq: Move conditional barrier definition into vchiq_core.h [48/50] staging: vchiq: Use vchiq.h as the main header file for services [49/50] staging: vchiq: Move defines into core header [50/50] staging: vchiq: Move vchiq.h into include directory

diff --git a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c index c1537a41a2fe..18309578e9a2 100644 --- a/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c +++ b/drivers/staging/vc04_services/bcm2835-audio/bcm2835-vchiq.c @@ -9,7 +9,7 @@ struct bcm2835_audio_instance { struct device *dev; - struct vchi_service *service; + unsigned service_handle; struct completion msg_avail_comp; struct mutex vchi_mutex; struct bcm2835_alsa_stream *alsa_stream; @@ -25,12 +25,12 @@ MODULE_PARM_DESC(force_bulk, "Force use of vchiq bulk for audio"); static void bcm2835_audio_lock(struct bcm2835_audio_instance *instance) { mutex_lock(&instance->vchi_mutex); - vchi_service_use(instance->service); + vchi_service_use(instance->service_handle); } static void bcm2835_audio_unlock(struct bcm2835_audio_instance *instance) { - vchi_service_release(instance->service); + vchi_service_release(instance->service_handle); mutex_unlock(&instance->vchi_mutex); } @@ -44,7 +44,7 @@ static int bcm2835_audio_send_msg_locked(struct bcm2835_audio_instance *instance init_completion(&instance->msg_avail_comp); } - status = vchi_queue_kernel_message(instance->service, + status = vchi_queue_kernel_message(instance->service_handle, m, sizeof(*m)); if (status) { dev_err(instance->dev, @@ -133,7 +133,7 @@ vc_vchi_audio_init(struct vchiq_instance *vchiq_instance, /* Open the VCHI service connections */ status = vchi_service_open(vchiq_instance, &params, - &instance->service); + &instance->service_handle); if (status) { dev_err(instance->dev, @@ -143,7 +143,7 @@ vc_vchi_audio_init(struct vchiq_instance *vchiq_instance, } /* Finished with the service for now */ - vchi_service_release(instance->service); + vchi_service_release(instance->service_handle); return 0; } @@ -153,10 +153,10 @@ static void vc_vchi_audio_deinit(struct bcm2835_audio_instance *instance) int status; mutex_lock(&instance->vchi_mutex); - vchi_service_use(instance->service); + vchi_service_use(instance->service_handle); /* Close all VCHI service connections */ - status = vchi_service_close(instance->service); + status = vchi_service_close(instance->service_handle); if (status) { dev_err(instance->dev, "failed to close VCHI service connection (status=%d)\n", @@ -226,7 +226,8 @@ int bcm2835_audio_open(struct bcm2835_alsa_stream *alsa_stream) goto deinit; bcm2835_audio_lock(instance); - vchi_get_peer_version(instance->service, &instance->peer_version); + vchi_get_peer_version(instance->service_handle, + &instance->peer_version); bcm2835_audio_unlock(instance); if (instance->peer_version < 2 || force_bulk) instance->max_packet = 0; /* bulk transfer */ @@ -342,7 +343,7 @@ int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream, count = size; if (!instance->max_packet) { /* Send the message to the videocore */ - status = vchi_bulk_queue_transmit(instance->service, + status = vchi_bulk_queue_transmit(instance->service_handle, src, count, VCHIQ_BULK_MODE_BLOCKING, NULL); @@ -350,7 +351,7 @@ int bcm2835_audio_write(struct bcm2835_alsa_stream *alsa_stream, while (count > 0) { int bytes = min(instance->max_packet, count); - status = vchi_queue_kernel_message(instance->service, + status = vchi_queue_kernel_message(instance->service_handle, src, bytes); src += bytes; count -= bytes; diff --git a/drivers/staging/vc04_services/interface/vchi/vchi.h b/drivers/staging/vc04_services/interface/vchi/vchi.h index 4afa6e9f57c4..74fd169e079a 100644 --- a/drivers/staging/vc04_services/interface/vchi/vchi.h +++ b/drivers/staging/vc04_services/interface/vchi/vchi.h @@ -21,10 +21,6 @@ struct vchi_held_msg { void *message; }; -struct vchi_service { - unsigned int handle; -}; - // Opaque handle for a VCHIQ instance struct vchiq_instance; @@ -46,24 +42,23 @@ extern int32_t vchi_disconnect(struct vchiq_instance *instance); * Global service API *****************************************************************************/ // Routine to open a named service -extern int32_t vchi_service_open(struct vchiq_instance *instance, - struct vchiq_service_params *setup, - struct vchi_service **service); +extern int vchi_service_open(struct vchiq_instance *instance, + struct vchiq_service_params *params, + unsigned *handle); -extern int32_t vchi_get_peer_version(struct vchi_service *service, - short *peer_version); +extern int32_t vchi_get_peer_version(unsigned handle, short *peer_version); // Routine to close a named service -extern int32_t vchi_service_close(struct vchi_service *service); +extern int32_t vchi_service_close(unsigned handle); // Routine to increment ref count on a named service -extern int32_t vchi_service_use(struct vchi_service *service); +extern int32_t vchi_service_use(unsigned handle); // Routine to decrement ref count on a named service -extern int32_t vchi_service_release(struct vchi_service *service); +extern int32_t vchi_service_release(unsigned handle); /* Routine to send a message from kernel memory across a service */ -extern int vchi_queue_kernel_message(struct vchi_service *service, void *data, +extern int vchi_queue_kernel_message(unsigned handle, void *data, unsigned int size); // Routine to look at a message in place. @@ -87,14 +82,14 @@ extern int32_t vchi_held_msg_release(struct vchi_held_msg *message); *****************************************************************************/ // Routine to prepare interface for a transfer from the other side -extern int32_t vchi_bulk_queue_receive(struct vchi_service *service, +extern int32_t vchi_bulk_queue_receive(unsigned handle, void *data_dst, uint32_t data_size, enum vchiq_bulk_mode mode, void *transfer_handle); // Routine to queue up data ready for transfer to the other (once they have signalled they are ready) -extern int32_t vchi_bulk_queue_transmit(struct vchi_service *service, +extern int32_t vchi_bulk_queue_transmit(unsigned handle, const void *data_src, uint32_t data_size, enum vchiq_bulk_mode mode, diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c index e76399e083f6..578346965da6 100644 --- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c +++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_shim.c @@ -10,14 +10,12 @@ #include "vchiq.h" #include "vchiq_core.h" -int vchi_queue_kernel_message(struct vchi_service *service, void *data, - unsigned int size) +int vchi_queue_kernel_message(unsigned handle, void *data, unsigned int size) { enum vchiq_status status; while (1) { - status = vchiq_queue_kernel_message(service->handle, data, - size); + status = vchiq_queue_kernel_message(handle, data, size); /* * vchiq_queue_message() may return VCHIQ_RETRY, so we need to @@ -48,15 +46,15 @@ EXPORT_SYMBOL(vchi_queue_kernel_message); * Returns: int32_t - success == 0 * ***********************************************************/ -int32_t vchi_bulk_queue_receive(struct vchi_service *service, void *data_dst, +int32_t vchi_bulk_queue_receive(unsigned handle, void *data_dst, uint32_t data_size, enum vchiq_bulk_mode mode, void *bulk_handle) { enum vchiq_status status; while (1) { - status = vchiq_bulk_receive(service->handle, data_dst, - data_size, bulk_handle, mode); + status = vchiq_bulk_receive(handle, data_dst, data_size, + bulk_handle, mode); /* * vchiq_bulk_receive() may return VCHIQ_RETRY, so we need to * implement a retry mechanism since this function is supposed @@ -86,17 +84,15 @@ EXPORT_SYMBOL(vchi_bulk_queue_receive); * Returns: int32_t - success == 0 * ***********************************************************/ -int32_t vchi_bulk_queue_transmit(struct vchi_service *service, - const void *data_src, - uint32_t data_size, - enum vchiq_bulk_mode mode, +int32_t vchi_bulk_queue_transmit(unsigned handle, const void *data_src, + uint32_t data_size, enum vchiq_bulk_mode mode, void *bulk_handle) { enum vchiq_status status; while (1) { - status = vchiq_bulk_transmit(service->handle, data_src, - data_size, bulk_handle, mode); + status = vchiq_bulk_transmit(handle, data_src, data_size, + bulk_handle, mode); /* * vchiq_bulk_transmit() may return VCHIQ_RETRY, so we need to @@ -245,7 +241,7 @@ EXPORT_SYMBOL(vchi_disconnect); * * Arguments: struct vchiq_instance *instance * struct service_creation *setup, - * struct vchi_service **service + * unsigned *handle * * Description: Routine to open a service * @@ -253,103 +249,54 @@ EXPORT_SYMBOL(vchi_disconnect); * ***********************************************************/ -static struct vchi_service *service_alloc(void) -{ - return kzalloc(sizeof(struct vchi_service), GFP_KERNEL); -} - -static void service_free(struct vchi_service *service) -{ - if (service) - kfree(service); -} - int32_t vchi_service_open(struct vchiq_instance *instance, - struct vchiq_service_params *params, - struct vchi_service **service) + struct vchiq_service_params *params, + unsigned *handle) { - - *service = service_alloc(); - if (service) { - enum vchiq_status status; - - status = vchiq_open_service(instance, params, - &((*service)->handle)); - if (status != VCHIQ_SUCCESS) { - service_free(*service); - *service = NULL; - } - } - - return *service ? 0 : -1; + return vchiq_open_service(instance, params, handle); } EXPORT_SYMBOL(vchi_service_open); -int32_t vchi_service_close(struct vchi_service *service) +int32_t vchi_service_close(unsigned handle) { - int32_t ret = -1; - - if (service) { - enum vchiq_status status = vchiq_close_service(service->handle); - if (status == VCHIQ_SUCCESS) - service_free(service); - - ret = status; - } - return ret; + return vchiq_close_service(handle); } EXPORT_SYMBOL(vchi_service_close); -int32_t vchi_get_peer_version(struct vchi_service *service, short *peer_version) +int32_t vchi_get_peer_version(unsigned handle, short *peer_version) { - int32_t ret = -1; - - if (service) { - enum vchiq_status status; - - status = vchiq_get_peer_version(service->handle, peer_version); - ret = status; - } - return ret; + return vchiq_get_peer_version(handle, peer_version); } EXPORT_SYMBOL(vchi_get_peer_version); /*********************************************************** * Name: vchi_service_use * - * Arguments: struct vchi_service *service + * Arguments: unsigned handle * * Description: Routine to increment refcount on a service * * Returns: void * ***********************************************************/ -int32_t vchi_service_use(struct vchi_service *service) +int32_t vchi_service_use(unsigned handle) { - int32_t ret = -1; - - if (service) - ret = vchiq_use_service(service->handle); - return ret; + return vchiq_use_service(handle); } EXPORT_SYMBOL(vchi_service_use); /*********************************************************** * Name: vchi_service_release * - * Arguments: struct vchi_service *service + * Arguments: unsigned handle * * Description: Routine to decrement refcount on a service * * Returns: void * ***********************************************************/ -int32_t vchi_service_release(struct vchi_service *service) +int32_t vchi_service_release(unsigned handle) { - int32_t ret = -1; - - if (service) - ret = vchiq_release_service(service->handle); - return ret; + return vchiq_release_service(handle); } EXPORT_SYMBOL(vchi_service_release); diff --git a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c index 627e11c8f5eb..ec5827531b55 100644 --- a/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c +++ b/drivers/staging/vc04_services/vchiq-mmal/mmal-vchiq.c @@ -165,7 +165,7 @@ struct mmal_msg_context { }; struct vchiq_mmal_instance { - struct vchi_service *service; + unsigned service_handle; /* ensure serialised access to service */ struct mutex vchiq_mutex; @@ -294,8 +294,8 @@ static void buffer_to_host_work_cb(struct work_struct *work) /* Dummy receive to ensure the buffers remain in order */ len = 8; /* queue the bulk submission */ - vchi_service_use(instance->service); - ret = vchi_bulk_queue_receive(instance->service, + vchi_service_use(instance->service_handle); + ret = vchi_bulk_queue_receive(instance->service_handle, msg_context->u.bulk.buffer->buffer, /* Actual receive needs to be a multiple * of 4 bytes @@ -304,7 +304,7 @@ static void buffer_to_host_work_cb(struct work_struct *work) VCHIQ_BULK_MODE_CALLBACK, msg_context); - vchi_service_release(instance->service); + vchi_service_release(instance->service_handle); if (ret != 0) pr_err("%s: ctx: %p, vchi_bulk_queue_receive failed %d\n", @@ -383,7 +383,7 @@ buffer_from_host(struct vchiq_mmal_instance *instance, if (!port->enabled) return -EINVAL; - pr_debug("instance:%p buffer:%p\n", instance->service, buf); + pr_debug("instance:%u buffer:%p\n", instance->service_handle, buf); /* get context */ if (!buf->msg_context) { @@ -438,14 +438,14 @@ buffer_from_host(struct vchiq_mmal_instance *instance, /* no payload in message */ m.u.buffer_from_host.payload_in_message = 0; - vchi_service_use(instance->service); + vchi_service_use(instance->service_handle); - ret = vchi_queue_kernel_message(instance->service, + ret = vchi_queue_kernel_message(instance->service_handle, &m, sizeof(struct mmal_msg_header) + sizeof(m.u.buffer_from_host)); - vchi_service_release(instance->service); + vchi_service_release(instance->service_handle); return ret; } @@ -679,14 +679,14 @@ static int send_synchronous_mmal_msg(struct vchiq_mmal_instance *instance, DBG_DUMP_MSG(msg, (sizeof(struct mmal_msg_header) + payload_len), ">>> sync message"); - vchi_service_use(instance->service); + vchi_service_use(instance->service_handle); - ret = vchi_queue_kernel_message(instance->service, + ret = vchi_queue_kernel_message(instance->service_handle, msg, sizeof(struct mmal_msg_header) + payload_len); - vchi_service_release(instance->service); + vchi_service_release(instance->service_handle); if (ret) { pr_err("error %d queuing message\n", ret); @@ -826,7 +826,7 @@ static int port_info_set(struct vchiq_mmal_instance *instance, port->component->handle, port->handle); release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -921,7 +921,7 @@ static int port_info_get(struct vchiq_mmal_instance *instance, pr_debug("%s:result:%d component:0x%x port:%d\n", __func__, ret, port->component->handle, port->handle); - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -969,7 +969,7 @@ static int create_component(struct vchiq_mmal_instance *instance, component->inputs, component->outputs, component->clocks); release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1002,7 +1002,7 @@ static int destroy_component(struct vchiq_mmal_instance *instance, release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1034,7 +1034,7 @@ static int enable_component(struct vchiq_mmal_instance *instance, ret = -rmsg->u.component_enable_reply.status; release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1067,7 +1067,7 @@ static int disable_component(struct vchiq_mmal_instance *instance, release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1099,7 +1099,7 @@ static int get_version(struct vchiq_mmal_instance *instance, *minor_out = rmsg->u.version.minor; release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1141,7 +1141,7 @@ static int port_action_port(struct vchiq_mmal_instance *instance, port_action_type_names[action_type], action_type); release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1189,7 +1189,7 @@ static int port_action_handle(struct vchiq_mmal_instance *instance, action_type, connect_component_handle, connect_port_handle); release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1230,7 +1230,7 @@ static int port_parameter_set(struct vchiq_mmal_instance *instance, ret, port->component->handle, port->handle, parameter_id); release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1289,7 +1289,7 @@ static int port_parameter_get(struct vchiq_mmal_instance *instance, ret, port->component->handle, port->handle, parameter_id); release_msg: - vchiq_release_message(instance->service->handle, rmsg_handle); + vchiq_release_message(instance->service_handle, rmsg_handle); return ret; } @@ -1834,9 +1834,9 @@ int vchiq_mmal_finalise(struct vchiq_mmal_instance *instance) if (mutex_lock_interruptible(&instance->vchiq_mutex)) return -EINTR; - vchi_service_use(instance->service); + vchi_service_use(instance->service_handle); - status = vchi_service_close(instance->service); + status = vchi_service_close(instance->service_handle); if (status != 0) pr_err("mmal-vchiq: VCHIQ close failed\n"); @@ -1914,21 +1914,22 @@ int vchiq_mmal_init(struct vchiq_mmal_instance **out_instance) if (!instance->bulk_wq) goto err_free; - status = vchi_service_open(vchiq_instance, &params, &instance->service); + status = vchi_service_open(vchiq_instance, &params, + &instance->service_handle); if (status) { pr_err("Failed to open VCHI service connection (status=%d)\n", status); goto err_close_services; } - vchi_service_release(instance->service); + vchi_service_release(instance->service_handle); *out_instance = instance; return 0; err_close_services: - vchi_service_close(instance->service); + vchi_service_close(instance->service_handle); destroy_workqueue(instance->bulk_wq); err_free: vfree(instance->bulk_scratch);

[34/50] staging: vchi: Get rid of struct vchi_service

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