From: Ralph Campbell <ralph.campbell@qlogic.com>
Date: Fri, 29 Jun 2007 18:37:56 +0000 (-0700)
Subject: IPoIB/cm: Partial error clean up unmaps wrong address
X-Git-Tag: v2.6.22~44^2
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=841adfca9c5fc0fec6b1f0b2e5eb7a3b239a7730;p=pandora-kernel.git

IPoIB/cm: Partial error clean up unmaps wrong address

If a page can't be allocated for the frag list of a skb, the code to
unmap the partially allocated list is off by one.  For exaple, if
'frags' equals one, i == 0, and the alloc_page() fails, then the old
loop would have unmapped mapping[1] which is uninitialized.  The same
would happen if the call to ib_dma_map_page() failed.

Signed-off-by: Ralph Campbell <ralph.campbell@qlogic.com>
Acked-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
---

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