[media] vmalloc_sg: off by one in error handling
authorDan Carpenter <dan.carpenter@oracle.com>
Tue, 5 Aug 2014 08:11:13 +0000 (05:11 -0300)
committerMauro Carvalho Chehab <m.chehab@samsung.com>
Thu, 21 Aug 2014 20:25:31 +0000 (15:25 -0500)
commit23d3090f8b44ab42162e99e8584445bc25b8922f
tree15421dc527d48d630fd926566e766d1c30679312
parent5b6aa199196220a5901c8d9cbad497fea347850a
[media] vmalloc_sg: off by one in error handling

The "i--" needs to happen at the start of the loop or it will try to
release something bogus (probably it will crash) and it won't release
the first ->vaddr_page[].

Fixes: 7b4eeed174b7 ('[media] vmalloc_sg: make sure all pages in vmalloc area are really DMA-ready')

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
drivers/media/v4l2-core/videobuf-dma-sg.c