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authorSylwester Nawrocki <s.nawrocki@samsung.com>2011-02-23 08:24:33 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2011-03-22 04:54:15 -0300
commit4ecbf5d1d2bb7d1e3882de79e512c1a0a2816581 (patch)
tree42270272224cdc3532f0923a8317adfecd0d6dcc /include/media
parenta0f8caefaf3295721ef00415c7d63ec10af253ab (diff)
[media] s5p-fimc: Prevent hanging on device close and fix the locking
Rework the locking in m2m driver to assure proper operation on SMP systems. When job_abort or stop_streaming was called to immediately shutdown a memory-to-memory transaction video buffers scheduled for processing were never returned to vb2 and v4l2_m2m_job_finish was not called which led to hanging. Correct this and also return the unprocessed buffers to vb2 marking them as erroneous, in case the end of frame interrupt do not occur. Reported-by: Sewoon Park <seuni.park@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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