[PATCH v2] [media] omap3isp: queue: fail QBUF if user buffer is too small

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Add buffer length check to sanity checks for USERPTR QBUF

Signed-off-by: Michael Jones <michael.jones@xxxxxxxxxxxxxxxx>
---
Changes for v2:
 - only check when V4L2_MEMORY_USERPTR

 drivers/media/video/omap3isp/ispqueue.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/drivers/media/video/omap3isp/ispqueue.c b/drivers/media/video/omap3isp/ispqueue.c
index 9c31714..9bebb1e 100644
--- a/drivers/media/video/omap3isp/ispqueue.c
+++ b/drivers/media/video/omap3isp/ispqueue.c
@@ -868,6 +868,10 @@ int omap3isp_video_queue_qbuf(struct isp_video_queue *queue,
 		goto done;
 
 	if (vbuf->memory == V4L2_MEMORY_USERPTR &&
+	    vbuf->length < buf->vbuf.length)
+		goto done;
+
+	if (vbuf->memory == V4L2_MEMORY_USERPTR &&
 	    vbuf->m.userptr != buf->vbuf.m.userptr) {
 		isp_video_buffer_cleanup(buf);
 		buf->vbuf.m.userptr = vbuf->m.userptr;
-- 
1.7.6


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