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9be2936959
linux/drivers/media/platform/omap3isp
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Laurent Pinchart 9be2936959 [media] media: omap3isp: video: Don't call vb2 mmap with queue lock held 
videobuf2 has long been subject to AB-BA style deadlocks due to the
queue lock and mmap_sem being taken in different orders for the mmap
operation. The problem has been fixed by making this operation callable
without taking the queue lock, using an mmap_lock internal to videobuf2.

The omap3isp driver still calls the mmap operation with the queue lock
held, resulting in a potential deadlock. As the operation can now be
called without locking the queue, fix it.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
2015-04-02 16:31:14 -03:00
..
cfa_coef_table.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
gamma_table.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isp.c [media] omap3isp: Fix division by 0 2014-12-23 08:43:54 -02:00
isp.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispccdc.c [media] v4l2-subdev: add support for the new enum_frame_size 'which' field 2015-03-23 11:48:55 -07:00
ispccdc.h [media] omap3isp: ccdc: Don't timeout on stream off when the CCDC is stopped 2014-08-21 15:25:16 -05:00
ispccp2.c [media] v4l2-subdev: add support for the new enum_frame_size 'which' field 2015-03-23 11:48:55 -07:00
ispccp2.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispcsi2.c [media] v4l2-subdev: add support for the new enum_frame_size 'which' field 2015-03-23 11:48:55 -07:00
ispcsi2.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispcsiphy.c [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispcsiphy.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isph3a_aewb.c [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isph3a_af.c [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isph3a.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isphist.c [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isphist.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
isppreview.c [media] v4l2-subdev: add support for the new enum_frame_size 'which' field 2015-03-23 11:48:55 -07:00
isppreview.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispreg.h [media] omap3isp: ccdc: Support the interlaced field orders at the CCDC output 2014-08-21 15:25:14 -05:00
ispresizer.c [media] v4l2-subdev: add support for the new enum_frame_size 'which' field 2015-03-23 11:48:55 -07:00
ispresizer.h [media] omap3isp: resizer: Protect against races when updating crop 2014-08-21 15:25:17 -05:00
ispstat.c [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispstat.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
ispvideo.c [media] media: omap3isp: video: Don't call vb2 mmap with queue lock held 2015-04-02 16:31:14 -03:00
ispvideo.h [media] platform: Make use of media_bus_format enum 2014-11-14 17:54:08 -02:00
luma_enhance_table.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00
Makefile [media] omap3isp: Move to videobuf2 2014-05-25 11:38:53 -03:00
noise_filter_table.h [media] omap3isp: Remove boilerplate disclaimer and FSF address 2014-08-21 15:25:12 -05:00