[media] fimc-lite: Don't use mutex_lock_interruptible() in device release()
Use uninterruptible mutex_lock in the release() file op to make
sure all resources are properly freed when a process is being
terminated. Returning -ERESTARTSYS has no effect for a terminating
process and this may cause driver resources not to be released.
This patch is required for stable kernels v3.5+.
Reported-by: Marek Szyprowski <m.szyprowski@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>
diff --git a/drivers/media/platform/s5p-fimc/fimc-lite.c b/drivers/media/platform/s5p-fimc/fimc-lite.c
index 23f203e..1b309a7 100644
--- a/drivers/media/platform/s5p-fimc/fimc-lite.c
+++ b/drivers/media/platform/s5p-fimc/fimc-lite.c
@@ -491,8 +491,7 @@
struct fimc_lite *fimc = video_drvdata(file);
int ret;
- if (mutex_lock_interruptible(&fimc->lock))
- return -ERESTARTSYS;
+ mutex_lock(&fimc->lock);
if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) {
clear_bit(ST_FLITE_IN_USE, &fimc->state);