aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/media/v4l2-core
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/v4l2-core')
-rw-r--r--drivers/media/v4l2-core/v4l2-mem2mem.c23
1 files changed, 8 insertions, 15 deletions
diff --git a/drivers/media/v4l2-core/v4l2-mem2mem.c b/drivers/media/v4l2-core/v4l2-mem2mem.c
index ec3ad4eb0c57..2f7291cc1fdd 100644
--- a/drivers/media/v4l2-core/v4l2-mem2mem.c
+++ b/drivers/media/v4l2-core/v4l2-mem2mem.c
@@ -583,32 +583,25 @@ unsigned int v4l2_m2m_poll(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
goto end;
}
- if (m2m_ctx->m2m_dev->m2m_ops->unlock)
- m2m_ctx->m2m_dev->m2m_ops->unlock(m2m_ctx->priv);
- else if (m2m_ctx->q_lock)
- mutex_unlock(m2m_ctx->q_lock);
-
+ spin_lock_irqsave(&src_q->done_lock, flags);
if (list_empty(&src_q->done_list))
poll_wait(file, &src_q->done_wq, wait);
+ spin_unlock_irqrestore(&src_q->done_lock, flags);
+
+ spin_lock_irqsave(&dst_q->done_lock, flags);
if (list_empty(&dst_q->done_list)) {
/*
* If the last buffer was dequeued from the capture queue,
* return immediately. DQBUF will return -EPIPE.
*/
- if (dst_q->last_buffer_dequeued)
+ if (dst_q->last_buffer_dequeued) {
+ spin_unlock_irqrestore(&dst_q->done_lock, flags);
return rc | POLLIN | POLLRDNORM;
+ }
poll_wait(file, &dst_q->done_wq, wait);
}
-
- if (m2m_ctx->m2m_dev->m2m_ops->lock)
- m2m_ctx->m2m_dev->m2m_ops->lock(m2m_ctx->priv);
- else if (m2m_ctx->q_lock) {
- if (mutex_lock_interruptible(m2m_ctx->q_lock)) {
- rc |= POLLERR;
- goto end;
- }
- }
+ spin_unlock_irqrestore(&dst_q->done_lock, flags);
spin_lock_irqsave(&src_q->done_lock, flags);
if (!list_empty(&src_q->done_list))

Privacy Policy