From: Yann Droneaud Date: Mon, 10 Mar 2014 22:06:26 +0000 (+0100) Subject: IB/mthca: Return an error on ib_copy_to_udata() failure X-Git-Tag: v3.2.58~26 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=44a524016c91bf52c52abc2dc7ab4c2262e98dac;p=pandora-kernel.git IB/mthca: Return an error on ib_copy_to_udata() failure commit 08e74c4b00c30c232d535ff368554959403d0432 upstream. In case of error when writing to userspace, the function mthca_create_cq() does not set an error code before following its error path. This patch sets the error code to -EFAULT when ib_copy_to_udata() fails. This was caught when using spatch (aka. coccinelle) to rewrite call to ib_copy_{from,to}_udata(). Link: https://www.gitorious.org/opteya/coccib/source/75ebf2c1033c64c1d81df13e4ae44ee99c989eba:ib_copy_udata.cocci Link: http://marc.info/?i=cover.1394485254.git.ydroneaud@opteya.com Signed-off-by: Yann Droneaud Signed-off-by: Roland Dreier Signed-off-by: Ben Hutchings --- Reading git-diff-tree failed