Jia-Ju Bai fc3c0fc85d media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run() ... [ Upstream commit bb6d42061a ] The driver may sleep while holding a spinlock. The function call path (from bottom to top) in Linux 4.19 is: drivers/media/platform/sti/bdisp/bdisp-hw.c, 385: msleep in bdisp_hw_reset drivers/media/platform/sti/bdisp/bdisp-v4l2.c, 341: bdisp_hw_reset in bdisp_device_run drivers/media/platform/sti/bdisp/bdisp-v4l2.c, 317: _raw_spin_lock_irqsave in bdisp_device_run To fix this bug, msleep() is replaced with udelay(). This bug is found by a static analysis tool STCheck written by myself. Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> Reviewed-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2020-02-24 08:36:26 +01:00
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Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
bdisp-debug.c	media: platform: sti: remove bdisp_dbg_declare() and hva_dbg_declare()	2019-01-21 15:41:17 -02:00
bdisp-filter.h	media: platform: sti: Adopt SPDX identifier	2017-12-13 09:54:41 -05:00
bdisp-hw.c	media: sti: bdisp: fix a possible sleep-in-atomic-context bug in bdisp_device_run()	2020-02-24 08:36:26 +01:00
bdisp-reg.h	media: platform: sti: Adopt SPDX identifier	2017-12-13 09:54:41 -05:00
bdisp-v4l2.c	media: bdisp: fix memleak on release	2019-12-17 19:56:19 +01:00
bdisp.h	media: platform: sti: Adopt SPDX identifier	2017-12-13 09:54:41 -05:00