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[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>
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@ -491,8 +491,7 @@ static int fimc_lite_close(struct file *file)
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struct fimc_lite *fimc = video_drvdata(file);
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int ret;
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if (mutex_lock_interruptible(&fimc->lock))
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return -ERESTARTSYS;
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mutex_lock(&fimc->lock);
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if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) {
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clear_bit(ST_FLITE_IN_USE, &fimc->state);
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