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| author | Neil Brown <neilb@suse.de> | 2007-12-10 15:49:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-12-10 19:43:55 -0800 |
| commit | 794e64d5e9c7f088378e093a48eb36a30091d82d (patch) | |
| tree | 426bc4ab1d11a9846a7b88d005db40583704db01 | |
| parent | 76832d8416430d6dd0575579ca1e00d1a790f4cb (diff) | |
| download | linux-stable-794e64d5e9c7f088378e093a48eb36a30091d82d.tar.gz linux-stable-794e64d5e9c7f088378e093a48eb36a30091d82d.tar.bz2 linux-stable-794e64d5e9c7f088378e093a48eb36a30091d82d.zip | |
Fix NULL dereference in umem.c
Fix NULL dereference in umem.c
Signed-off-by: Neil Brown <neilb@suse.de>
Tested-by: Dave Chinner <dgc@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | drivers/block/umem.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/block/umem.c b/drivers/block/umem.c index 99806f9ee4ce..5f5095afb06b 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -484,7 +484,8 @@ static void process_page(unsigned long data) page->idx++; if (page->idx >= bio->bi_vcnt) { page->bio = bio->bi_next; - page->idx = page->bio->bi_idx; + if (page->bio) + page->idx = page->bio->bi_idx; } pci_unmap_page(card->dev, desc->data_dma_handle, |