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[media] omap3isp: queue: Don't corrupt buf->npages when get_user_pages() fails
authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Thu, 7 Apr 2011 16:30:14 +0000 (13:30 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Tue, 19 Apr 2011 14:29:56 +0000 (11:29 -0300)
get_user_pages() can return a negative error code when it fails. Set
buf->npages to 0 in that case, to prevent isp_video_buffer_cleanup()
from releasing invalid pages.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

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