From: Roland Dreier <rolandd@cisco.com>
Date: Thu, 22 Feb 2007 21:16:51 +0000 (-0800)
Subject: IB/uverbs: Return correct error for invalid PD in register MR
X-Git-Tag: v2.6.21-rc2~29^2~7
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=aaf1aef55f50f53812871693692c7cbefcd57f39;p=pandora-kernel.git

IB/uverbs: Return correct error for invalid PD in register MR

If no matching PD is found in ib_uverbs_reg_mr(), then the function
jumps to err_release without setting the return value ret.  This means
that ret will hold the return value of the call to ib_umem_get() a few
lines earlier; if the function reaches the point where it looks for
the PD, we know that ib_umem_get() must have returned 0, so
ib_uverbs_reg_mr() ends up return 0 for a bad PD ID.  Fix this by
setting ret to -EINVAL before jumping to the exit path when no PD is
found.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
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