diff options
Diffstat (limited to 'drivers/media/video/v4l2-mem2mem.c')
| -rw-r--r-- | drivers/media/video/v4l2-mem2mem.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/drivers/media/video/v4l2-mem2mem.c b/drivers/media/video/v4l2-mem2mem.c index 3b15bf5892a..975d0fa938c 100644 --- a/drivers/media/video/v4l2-mem2mem.c +++ b/drivers/media/video/v4l2-mem2mem.c @@ -97,11 +97,12 @@ void *v4l2_m2m_next_buf(struct v4l2_m2m_queue_ctx *q_ctx) spin_lock_irqsave(&q_ctx->rdy_spinlock, flags); - if (list_empty(&q_ctx->rdy_queue)) - goto end; + if (list_empty(&q_ctx->rdy_queue)) { + spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); + return NULL; + } b = list_entry(q_ctx->rdy_queue.next, struct v4l2_m2m_buffer, list); -end: spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); return &b->vb; } @@ -117,12 +118,13 @@ void *v4l2_m2m_buf_remove(struct v4l2_m2m_queue_ctx *q_ctx) unsigned long flags; spin_lock_irqsave(&q_ctx->rdy_spinlock, flags); - if (!list_empty(&q_ctx->rdy_queue)) { - b = list_entry(q_ctx->rdy_queue.next, struct v4l2_m2m_buffer, - list); - list_del(&b->list); - q_ctx->num_rdy--; + if (list_empty(&q_ctx->rdy_queue)) { + spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); + return NULL; } + b = list_entry(q_ctx->rdy_queue.next, struct v4l2_m2m_buffer, list); + list_del(&b->list); + q_ctx->num_rdy--; spin_unlock_irqrestore(&q_ctx->rdy_spinlock, flags); return &b->vb; |