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ba40be0fa2
linux/drivers/media/platform
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Minghsiu Tsai ba40be0fa2 [media] media: mtk-jpeg: fix continuous log "Context is NULL" 
The symptom is continuous log "mtk-jpeg 18004000.jpegdec: Context is NULL"
in kernel log. It is because the error handling in irq doesn't clear
interrupt.

The calling flow like as below when issue happen
mtk_jpeg_device_run()
mtk_jpeg_job_abort()
  v4l2_m2m_job_finish() -> m2m_dev->curr_ctx = NULL;
mtk_jpeg_dec_irq()
  v4l2_m2m_get_curr_priv()
     -> m2m_dev->curr_ctx == NULL
     -> return NULL
log "Context is NULL"

There is race condition between job_abort() and irq. In order to simplify
code, don't want to add extra flag to maintain state, empty job_abort() and
clear interrupt before v4l2_m2m_get_curr_priv() in irq.

Signed-off-by: Minghsiu Tsai <minghsiu.tsai@mediatek.com>
Acked-by: Rick Chang <rick.chang@mediatek.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
2017-04-05 15:08:26 -03:00
..
am437x [media] am437x-vpfe: always assign bpp variable 2017-01-30 15:43:40 -02:00
atmel [media] atmel-isc: fix off-by-one comparison and out of bounds read issue 2017-04-05 15:06:38 -03:00
blackfin [media] media: Drop FSF's postal address from the source code files 2017-01-27 11:38:09 -02:00
coda [media] coda: fix warnings when compiling with 64 bits 2017-03-22 10:09:17 -03:00
davinci [media] media: vpif: use a configurable i2c_adapter_id for vpif display 2017-03-22 11:55:56 -03:00
exynos4-is scripts/spelling.txt: add "aligment" pattern and fix typo instances 2017-02-27 18:43:46 -08:00
exynos-gsc [media] exynos-gsc: Do not swap cb/cr for semi planar formats 2017-03-22 09:50:07 -03:00
marvell-ccic [media] marvell-ccic: don't break long lines 2016-10-21 09:30:46 -02:00
mtk-jpeg [media] media: mtk-jpeg: fix continuous log "Context is NULL" 2017-04-05 15:08:26 -03:00
mtk-mdp [media] mtk-mdp: allocate video_device dynamically 2016-11-22 05:42:29 -02:00
mtk-vcodec [media] mtk-vcodec: check the vp9 decoder buffer index from VPU 2017-03-22 11:26:47 -03:00
mtk-vpu [media] VPU: mediatek: Fix return value in case of error 2016-10-24 18:11:57 -02:00
omap Linux 4.9-rc5 2016-11-16 16:42:27 -02:00
omap3isp [media] v4l: omap3isp: Clean up file handle in open() and release() 2017-01-31 10:57:58 -02:00
rcar-vin [media] rcar-vin: add R-Car gen2 fallback compatibility string 2016-09-22 12:52:55 -03:00
s3c-camif [media] media: platform: s3c-camif: constify v4l2_subdev_ops structures 2017-02-03 10:58:00 -02:00
s5p-g2d [media] platform: constify vb2_ops structures 2016-09-19 16:21:06 -03:00
s5p-jpeg [media] squash lines for simple wrapper functions 2016-11-16 13:28:40 -02:00
s5p-mfc [media] s5p-mfc: Add support for MFC v8 available in Exynos 5433 SoCs 2016-11-30 09:22:07 -02:00
soc_camera [media] soc-camera: fix rectangle adjustment in cropping 2017-03-23 14:45:59 -03:00
sti [media] st-delta: mjpeg: fix static checker warning 2017-04-05 15:04:06 -03:00
ti-vpe [media] media: ti-vpe: vpe: allow use of user specified stride 2017-03-03 14:43:32 -03:00
vivid [media] vivid: fix try_fmt behavior 2017-03-22 10:16:17 -03:00
vsp1 [media] v4l: vsp1: Adapt vsp1_du_setup_lif() interface to use a structure 2017-03-07 13:34:11 -03:00
xilinx [media] media: platform: xilinx: xilinx-tpg: constify v4l2_subdev_* structures 2017-02-03 09:21:50 -02:00
arv.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
fsl-viu.c [media] fsl-viu: drop format names 2015-08-11 06:59:09 -03:00
Kconfig [media] platform: compile VIDEO_CODA with COMPILE_TEST 2017-03-22 10:06:29 -03:00
m2m-deinterlace.c [media] platform: constify vb2_ops structures 2016-09-19 16:21:06 -03:00
Makefile [media] vcodec: mediatek: Add Mediatek JPEG Decoder Driver 2017-03-03 08:26:46 -03:00
mx2_emmaprp.c [media] platform: don't break long lines 2016-10-21 10:06:32 -02:00
pxa_camera.c [media] media: platform: pxa_camera: add missing sensor power on 2016-10-24 18:08:12 -02:00
rcar_fdp1.c [media] v4l: rcar_fdp1: use %4.4s to format a 4-byte string 2017-02-03 11:50:40 -02:00
rcar_jpu.c [media] platform: constify vb2_ops structures 2016-09-19 16:21:06 -03:00
rcar-fcp.c [media] v4l: rcar-fcp: Fix module autoload for OF registration 2016-11-16 13:17:07 -02:00
sh_veu.c [media] vb2: replace void *alloc_ctxs by struct device *alloc_devs 2016-07-08 14:45:07 -03:00
sh_vou.c [media] platform: constify vb2_ops structures 2016-09-19 16:21:06 -03:00
via-camera.c [media] platform: don't break long lines 2016-10-21 10:06:32 -02:00
via-camera.h
vim2m.c [media] vim2m: Clean up file handle in open() error path 2017-01-31 07:44:26 -02:00