From patchwork Thu Mar 2 10:07:52 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tomi Valkeinen X-Patchwork-Id: 13157037 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 25289C7EE30 for ; Thu, 2 Mar 2023 10:08:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229961AbjCBKIV (ORCPT ); Thu, 2 Mar 2023 05:08:21 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57166 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230135AbjCBKII (ORCPT ); Thu, 2 Mar 2023 05:08:08 -0500 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4395611660 for ; Thu, 2 Mar 2023 02:08:07 -0800 (PST) Received: from desky.lan (91-154-32-225.elisa-laajakaista.fi [91.154.32.225]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 6738D9CA; Thu, 2 Mar 2023 11:08:03 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1677751683; bh=ukmK0jrqABM6MAFSMTy30ipfSZ4hxT9gn1dbhKH2Vus=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=eapCt68x6j63jRBTlq9DhSJBuiEnFXvyhgk/CKt7CL96y5A7r4NLI9t3edeLZFoS1 CQq21+rk4+Mg0v/7mVi7ZvkMUeQgzf+UUmQ20O00udCmoq2CPRmeTo3+J3m2omyMFh 0W3hGTtN2ji47k5zm3kMcEewKHiiiHtY0s81DFKk= From: Tomi Valkeinen To: Jacopo Mondi , linux-media@vger.kernel.org, Laurent Pinchart , Sakari Ailus Cc: Kieran Bingham , Jai Luthra , Vaishnav Achath , Tomi Valkeinen Subject: [PATCH v3 2/5] media: ti: cal: Fix cal_camerarx_create() error handling Date: Thu, 2 Mar 2023 12:07:52 +0200 Message-Id: <20230302100755.191164-3-tomi.valkeinen@ideasonboard.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230302100755.191164-1-tomi.valkeinen@ideasonboard.com> References: <20230302100755.191164-1-tomi.valkeinen@ideasonboard.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org We don't do a proper job at freeing resources in cal_camerarx_create's error paths. Fix these, and also switch the phy allcation from kzalloc to devm_kzalloc to simplify the code further. Signed-off-by: Tomi Valkeinen Reviewed-by: Jacopo Mondi --- drivers/media/platform/ti/cal/cal-camerarx.c | 23 +++++++++++--------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/media/platform/ti/cal/cal-camerarx.c b/drivers/media/platform/ti/cal/cal-camerarx.c index 267089b0fea0..97208d542f9e 100644 --- a/drivers/media/platform/ti/cal/cal-camerarx.c +++ b/drivers/media/platform/ti/cal/cal-camerarx.c @@ -864,7 +864,7 @@ struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal, unsigned int i; int ret; - phy = kzalloc(sizeof(*phy), GFP_KERNEL); + phy = devm_kzalloc(cal->dev, sizeof(*phy), GFP_KERNEL); if (!phy) return ERR_PTR(-ENOMEM); @@ -882,7 +882,7 @@ struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal, if (IS_ERR(phy->base)) { cal_err(cal, "failed to ioremap\n"); ret = PTR_ERR(phy->base); - goto error; + goto err_destroy_mutex; } cal_dbg(1, cal, "ioresource %s at %pa - %pa\n", @@ -890,11 +890,11 @@ struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal, ret = cal_camerarx_regmap_init(cal, phy); if (ret) - goto error; + goto err_destroy_mutex; ret = cal_camerarx_parse_dt(phy); if (ret) - goto error; + goto err_destroy_mutex; /* Initialize the V4L2 subdev and media entity. */ sd = &phy->subdev; @@ -911,21 +911,25 @@ struct cal_camerarx *cal_camerarx_create(struct cal_dev *cal, ret = media_entity_pads_init(&sd->entity, ARRAY_SIZE(phy->pads), phy->pads); if (ret) - goto error; + goto err_node_put; ret = cal_camerarx_sd_init_cfg(sd, NULL); if (ret) - goto error; + goto err_entity_cleanup; ret = v4l2_device_register_subdev(&cal->v4l2_dev, sd); if (ret) - goto error; + goto err_entity_cleanup; return phy; -error: +err_entity_cleanup: media_entity_cleanup(&phy->subdev.entity); - kfree(phy); +err_node_put: + of_node_put(phy->source_ep_node); + of_node_put(phy->source_node); +err_destroy_mutex: + mutex_destroy(&phy->mutex); return ERR_PTR(ret); } @@ -939,5 +943,4 @@ void cal_camerarx_destroy(struct cal_camerarx *phy) of_node_put(phy->source_ep_node); of_node_put(phy->source_node); mutex_destroy(&phy->mutex); - kfree(phy); }