diff options
Diffstat (limited to 'drivers/media/video/video-buf.c')
-rw-r--r-- | drivers/media/video/video-buf.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c index acfd3a103f35..9a6bf287e26a 100644 --- a/drivers/media/video/video-buf.c +++ b/drivers/media/video/video-buf.c | |||
@@ -753,10 +753,9 @@ videobuf_read_zerocopy(struct videobuf_queue *q, char __user *data, | |||
753 | int retval; | 753 | int retval; |
754 | 754 | ||
755 | /* setup stuff */ | 755 | /* setup stuff */ |
756 | retval = -ENOMEM; | ||
757 | q->read_buf = videobuf_alloc(q->msize); | 756 | q->read_buf = videobuf_alloc(q->msize); |
758 | if (NULL == q->read_buf) | 757 | if (NULL == q->read_buf) |
759 | goto done; | 758 | return -ENOMEM; |
760 | 759 | ||
761 | q->read_buf->memory = V4L2_MEMORY_USERPTR; | 760 | q->read_buf->memory = V4L2_MEMORY_USERPTR; |
762 | q->read_buf->baddr = (unsigned long)data; | 761 | q->read_buf->baddr = (unsigned long)data; |
@@ -817,10 +816,14 @@ ssize_t videobuf_read_one(struct videobuf_queue *q, | |||
817 | if (NULL == q->read_buf) | 816 | if (NULL == q->read_buf) |
818 | goto done; | 817 | goto done; |
819 | q->read_buf->memory = V4L2_MEMORY_USERPTR; | 818 | q->read_buf->memory = V4L2_MEMORY_USERPTR; |
819 | q->read_buf->bsize = count; /* preferred size */ | ||
820 | field = videobuf_next_field(q); | 820 | field = videobuf_next_field(q); |
821 | retval = q->ops->buf_prepare(q,q->read_buf,field); | 821 | retval = q->ops->buf_prepare(q,q->read_buf,field); |
822 | if (0 != retval) | 822 | if (0 != retval) { |
823 | kfree (q->read_buf); | ||
824 | q->read_buf = NULL; | ||
823 | goto done; | 825 | goto done; |
826 | } | ||
824 | spin_lock_irqsave(q->irqlock,flags); | 827 | spin_lock_irqsave(q->irqlock,flags); |
825 | q->ops->buf_queue(q,q->read_buf); | 828 | q->ops->buf_queue(q,q->read_buf); |
826 | spin_unlock_irqrestore(q->irqlock,flags); | 829 | spin_unlock_irqrestore(q->irqlock,flags); |