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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>
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@ -484,7 +484,8 @@ static void process_page(unsigned long data)
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page->idx++;
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page->idx++;
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if (page->idx >= bio->bi_vcnt) {
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if (page->idx >= bio->bi_vcnt) {
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page->bio = bio->bi_next;
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page->bio = bio->bi_next;
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page->idx = page->bio->bi_idx;
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if (page->bio)
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page->idx = page->bio->bi_idx;
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}
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}
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pci_unmap_page(card->dev, desc->data_dma_handle,
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pci_unmap_page(card->dev, desc->data_dma_handle,
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