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Diffstat (limited to 'drivers/media/video/video-buf.c')
-rw-r--r--drivers/media/video/video-buf.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/media/video/video-buf.c b/drivers/media/video/video-buf.c
index acfd3a1..9a6bf28 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,
int retval;
/* setup stuff */
- retval = -ENOMEM;
q->read_buf = videobuf_alloc(q->msize);
if (NULL == q->read_buf)
- goto done;
+ return -ENOMEM;
q->read_buf->memory = V4L2_MEMORY_USERPTR;
q->read_buf->baddr = (unsigned long)data;
@@ -817,10 +816,14 @@ ssize_t videobuf_read_one(struct videobuf_queue *q,
if (NULL == q->read_buf)
goto done;
q->read_buf->memory = V4L2_MEMORY_USERPTR;
+ q->read_buf->bsize = count; /* preferred size */
field = videobuf_next_field(q);
retval = q->ops->buf_prepare(q,q->read_buf,field);
- if (0 != retval)
+ if (0 != retval) {
+ kfree (q->read_buf);
+ q->read_buf = NULL;
goto done;
+ }
spin_lock_irqsave(q->irqlock,flags);
q->ops->buf_queue(q,q->read_buf);
spin_unlock_irqrestore(q->irqlock,flags);
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