vxge: fix return of a free'd memblock on a failed dma mapping

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commit 0a2c34f18c upstream.

Currently if a pci dma mapping failure is detected a free'd
memblock address is returned rather than a NULL (that indicates
an error). Fix this by ensuring NULL is returned on this error case.

Addresses-Coverity: ("Use after free")
Fixes: 528f727279 ("vxge: code cleanup and reorganization")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[bwh: Backported to 3.16: adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

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Colin Ian King 2019-04-12 14:45:12 +01:00 • committed by Ben Hutchings

parent 8fe41e807b

commit e10ea2d722

1 changed files with 1 additions and 0 deletions

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drivers/net/ethernet/neterion/vxge/vxge-config.c

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