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From: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Cc: linuxarm@huawei.com, mauro.chehab@huawei.com,
Mauro Carvalho Chehab <mchehab+huawei@kernel.org>,
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Subject: [PATCH 00/78] media: use pm_runtime_resume_and_get() instead of
pm_runtime_get_sync()
Date: Sat, 24 Apr 2021 08:44:10 +0200
Message-Id: <cover.1619191723.git.mchehab+huawei@kernel.org>
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| Series |
media: use pm_runtime_resume_and_get() instead of pm_runtime_get_sync()
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There was a Smatch check for these bugs. This was a good source of recurring Reported-by tags for me. ;) Thanks for doing this. regards, dan carpenter
During the review of the patches from unm.edu, one of the patterns I noticed is the amount of patches trying to fix pm_runtime_get_sync() calls. On contrary of the common sense that a foo_get() function will only increment the usage on success, pm_runtime_get_sync() increments it unconditionally. Due to that, there are bugs on lots of places, that ended being gradually fixed, but, still there are a few places on media where this is still broken. Commit dd8088d5a896 ("PM: runtime: Add pm_runtime_resume_and_get to deal with usage counter") added a new method to does a pm_runtime get, which increments the usage count only on success. This series replace all places where the old pm_runtime_get_sync() is called, using pm_runtime_resume_and_get() instead. This should help to avoid future mistakes like that, as people tend to use the existing drivers as examples for newer ones. compile-tested only. Mauro Carvalho Chehab (78): media: atmel: properly get pm_runtime media: marvel-ccic: fix some issues when getting pm_runtime media: mdk-mdp: fix pm_runtime_get_sync() usage count media: rcar_fdp1: fix usage count media: mdk-mdp: fix pm_runtime_get_sync() usage count media: renesas-ceu: fix pm_runtime_get_sync() usage count media: s5p: fix pm_runtime_get_sync() usage count media: am437x:: fix pm_runtime_get_sync() usage count media: sh_vou: fix pm_runtime_get_sync() usage count media: sti/hva: use pm_runtime_resume_and_get() staging: media: rkvdec: fix pm_runtime_get_sync() usage count staging: media: atomisp_fops: use pm_runtime_resume_and_get() staging: media: hantro_drv: use pm_runtime_resume_and_get() staging: media: imx7-mipi-csis: use pm_runtime_resume_and_get() staging: media: ipu3: use pm_runtime_resume_and_get() staging: media: cedrus_video: use pm_runtime_resume_and_get() staging: media: vde: use pm_runtime_resume_and_get() staging: media: csi: use pm_runtime_resume_and_get() staging: media: vi: use pm_runtime_resume_and_get() media: mtk-vcodec: fix pm_runtime_get_sync() usage count media: s5p-jpeg: fix pm_runtime_get_sync() usage count media: delta-v4l2: fix pm_runtime_get_sync() usage count media: sun8i_rotate: fix pm_runtime_get_sync() usage count media: i2c: ak7375: use pm_runtime_resume_and_get() media: i2c: ccs-core: use pm_runtime_resume_and_get() media: i2c: dw9714: use pm_runtime_resume_and_get() media: i2c: dw9768: use pm_runtime_resume_and_get() media: i2c: dw9807-vcm: use pm_runtime_resume_and_get() media: i2c: hi556: use pm_runtime_resume_and_get() media: i2c: imx214: use pm_runtime_resume_and_get() media: i2c: imx219: use pm_runtime_resume_and_get() media: i2c: imx258: use pm_runtime_resume_and_get() media: i2c: imx274: use pm_runtime_resume_and_get() media: i2c: imx290: use pm_runtime_resume_and_get() media: i2c: imx319: use pm_runtime_resume_and_get() media: i2c: imx334: use pm_runtime_resume_and_get() media: i2c: imx355: use pm_runtime_resume_and_get() media: i2c: mt9m001: use pm_runtime_resume_and_get() media: i2c: ov02a10: use pm_runtime_resume_and_get() media: i2c: ov13858: use pm_runtime_resume_and_get() media: i2c: ov2659: use pm_runtime_resume_and_get() media: i2c: ov2685: use pm_runtime_resume_and_get() media: i2c: ov2740: use pm_runtime_resume_and_get() media: i2c: ov5647: use pm_runtime_resume_and_get() media: i2c: ov5648: use pm_runtime_resume_and_get() media: i2c: ov5670: use pm_runtime_resume_and_get() media: i2c: ov5675: use pm_runtime_resume_and_get() media: i2c: ov5695: use pm_runtime_resume_and_get() media: i2c: ov7740: use pm_runtime_resume_and_get() media: i2c: ov8856: use pm_runtime_resume_and_get() media: i2c: ov8865: use pm_runtime_resume_and_get() media: i2c: ov9734: use pm_runtime_resume_and_get() media: i2c: tvp5150: use pm_runtime_resume_and_get() media: i2c: video-i2c: use pm_runtime_resume_and_get() media: ipu3: use pm_runtime_resume_and_get() media: coda: use pm_runtime_resume_and_get() media: exynos4-is: use pm_runtime_resume_and_get() media: exynos-gsc: use pm_runtime_resume_and_get() media: mtk-jpeg: use pm_runtime_resume_and_get() media: camss-csid: use pm_runtime_resume_and_get() media: camss-csiphy: use pm_runtime_resume_and_get() media: camss-ispif: use pm_runtime_resume_and_get() media: camss-vfe: use pm_runtime_resume_and_get() media: core: use pm_runtime_resume_and_get() media: pm_helpers: use pm_runtime_resume_and_get() media: vdec: use pm_runtime_resume_and_get() media: venc: use pm_runtime_resume_and_get() media: rcar-fcp: use pm_runtime_resume_and_get() media: rcar-vin: use pm_runtime_resume_and_get() media: rga-buf: use pm_runtime_resume_and_get() media: rkisp1-capture: use pm_runtime_resume_and_get() media: s3c-camif: use pm_runtime_resume_and_get() media: s5p-mfc: use pm_runtime_resume_and_get() media: bdisp-v4l2: use pm_runtime_resume_and_get() media: stm32: use pm_runtime_resume_and_get() media: sun4i_v4l2: use pm_runtime_resume_and_get() media: ti-vpe: use pm_runtime_resume_and_get() media: vsp1: use pm_runtime_resume_and_get() drivers/media/cec/platform/s5p/s5p_cec.c | 5 +++- drivers/media/i2c/ak7375.c | 10 +------ drivers/media/i2c/ccs/ccs-core.c | 11 ++++---- drivers/media/i2c/dw9714.c | 10 +------ drivers/media/i2c/dw9768.c | 10 +------ drivers/media/i2c/dw9807-vcm.c | 10 +------ drivers/media/i2c/hi556.c | 3 +-- drivers/media/i2c/imx214.c | 6 ++--- drivers/media/i2c/imx219.c | 6 ++--- drivers/media/i2c/imx258.c | 6 ++--- drivers/media/i2c/imx274.c | 3 +-- drivers/media/i2c/imx290.c | 6 ++--- drivers/media/i2c/imx319.c | 6 ++--- drivers/media/i2c/imx334.c | 5 ++-- drivers/media/i2c/imx355.c | 6 ++--- drivers/media/i2c/mt9m001.c | 7 ++--- drivers/media/i2c/ov02a10.c | 6 ++--- drivers/media/i2c/ov13858.c | 6 ++--- drivers/media/i2c/ov2659.c | 6 ++--- drivers/media/i2c/ov2685.c | 7 +++-- drivers/media/i2c/ov2740.c | 6 ++--- drivers/media/i2c/ov5647.c | 9 ++++--- drivers/media/i2c/ov5648.c | 6 ++--- drivers/media/i2c/ov5670.c | 6 ++--- drivers/media/i2c/ov5675.c | 3 +-- drivers/media/i2c/ov5695.c | 6 ++--- drivers/media/i2c/ov7740.c | 8 +++--- drivers/media/i2c/ov8856.c | 3 +-- drivers/media/i2c/ov8865.c | 6 ++--- drivers/media/i2c/ov9734.c | 3 +-- drivers/media/i2c/tvp5150.c | 16 +++--------- drivers/media/i2c/video-i2c.c | 14 ++++------ drivers/media/pci/intel/ipu3/ipu3-cio2-main.c | 3 +-- drivers/media/platform/am437x/am437x-vpfe.c | 10 ++++--- drivers/media/platform/atmel/atmel-isc-base.c | 26 ++++++++++++++----- drivers/media/platform/atmel/atmel-isi.c | 19 +++++++++++--- drivers/media/platform/coda/coda-common.c | 2 +- drivers/media/platform/exynos-gsc/gsc-core.c | 3 +-- drivers/media/platform/exynos-gsc/gsc-m2m.c | 2 +- .../media/platform/exynos4-is/fimc-capture.c | 6 ++--- drivers/media/platform/exynos4-is/fimc-is.c | 3 ++- .../platform/exynos4-is/fimc-isp-video.c | 3 +-- drivers/media/platform/exynos4-is/fimc-isp.c | 7 +++-- drivers/media/platform/exynos4-is/fimc-lite.c | 5 ++-- drivers/media/platform/exynos4-is/fimc-m2m.c | 2 +- drivers/media/platform/exynos4-is/media-dev.c | 8 +++--- drivers/media/platform/exynos4-is/mipi-csis.c | 5 ++-- .../media/platform/marvell-ccic/mcam-core.c | 9 +++++-- .../media/platform/mtk-jpeg/mtk_jpeg_core.c | 4 +-- drivers/media/platform/mtk-mdp/mtk_mdp_m2m.c | 6 ++--- .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c | 4 +-- .../media/platform/qcom/camss/camss-csid.c | 6 ++--- .../media/platform/qcom/camss/camss-csiphy.c | 6 ++--- .../media/platform/qcom/camss/camss-ispif.c | 6 ++--- drivers/media/platform/qcom/camss/camss-vfe.c | 5 ++-- drivers/media/platform/qcom/venus/core.c | 19 +++++++------- .../media/platform/qcom/venus/pm_helpers.c | 10 +++---- drivers/media/platform/qcom/venus/vdec.c | 4 +-- drivers/media/platform/qcom/venus/venc.c | 5 ++-- drivers/media/platform/rcar-fcp.c | 6 ++--- drivers/media/platform/rcar-vin/rcar-csi2.c | 2 +- drivers/media/platform/rcar-vin/rcar-dma.c | 6 ++--- drivers/media/platform/rcar-vin/rcar-v4l2.c | 6 ++--- drivers/media/platform/rcar_fdp1.c | 12 +++++++-- drivers/media/platform/renesas-ceu.c | 5 +++- drivers/media/platform/rockchip/rga/rga-buf.c | 3 +-- drivers/media/platform/rockchip/rga/rga.c | 4 ++- .../platform/rockchip/rkisp1/rkisp1-capture.c | 3 +-- .../media/platform/s3c-camif/camif-capture.c | 5 ++-- drivers/media/platform/s3c-camif/camif-core.c | 5 ++-- drivers/media/platform/s5p-jpeg/jpeg-core.c | 2 +- drivers/media/platform/s5p-mfc/s5p_mfc_pm.c | 6 ++--- drivers/media/platform/sh_vou.c | 6 ++++- drivers/media/platform/sti/bdisp/bdisp-v4l2.c | 7 ++--- drivers/media/platform/sti/delta/delta-v4l2.c | 4 +-- drivers/media/platform/sti/hva/hva-hw.c | 17 ++++++------ drivers/media/platform/stm32/stm32-dcmi.c | 5 ++-- .../platform/sunxi/sun4i-csi/sun4i_v4l2.c | 7 +++-- .../sunxi/sun8i-rotate/sun8i_rotate.c | 2 +- drivers/media/platform/ti-vpe/cal-video.c | 4 ++- drivers/media/platform/ti-vpe/cal.c | 8 +++--- drivers/media/platform/ti-vpe/vpe.c | 4 +-- drivers/media/platform/vsp1/vsp1_drv.c | 6 ++--- .../staging/media/atomisp/pci/atomisp_fops.c | 6 ++--- drivers/staging/media/hantro/hantro_drv.c | 2 +- drivers/staging/media/imx/imx7-mipi-csis.c | 7 +++-- drivers/staging/media/ipu3/ipu3.c | 3 +-- drivers/staging/media/rkvdec/rkvdec.c | 2 +- .../staging/media/sunxi/cedrus/cedrus_video.c | 6 ++--- drivers/staging/media/tegra-vde/vde.c | 16 +++++++----- drivers/staging/media/tegra-video/csi.c | 3 +-- drivers/staging/media/tegra-video/vi.c | 3 +-- 92 files changed, 270 insertions(+), 322 deletions(-)