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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>
wifi-calibration
Neil Brown 2007-12-10 15:49:30 -08:00 committed by Linus Torvalds
parent 76832d8416
commit 794e64d5e9
1 changed files with 2 additions and 1 deletions
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3
drivers/block/umem.c
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@ -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,