[Xen-devel] [PATCH] fix segfault in libvchan client error path

[Anil Madhavapeddy <anil@xxxxxxxxxx>]

# HG changeset patch
# User Anil Madhavapeddy <anil@xxxxxxxxxx>
# Date 1322064942 0
# Node ID 2934afb3348776eaad57d0d91893f00c862ac507
# Parent  0a0c02a616768bfab16c072788cb76be1893c37f
In libvchan_client_init, go to the error path if the gntdev device is not
available.  Otherwise, a segfault happens later as the vchan context is
invalid.

Signed-off-by: Anil Madhavapeddy <anil@xxxxxxxxxx>

diff -r 0a0c02a61676 -r 2934afb33487 tools/libvchan/init.c
--- a/tools/libvchan/init.c     Mon Nov 21 21:28:34 2011 +0000
+++ b/tools/libvchan/init.c     Wed Nov 23 16:15:42 2011 +0000
@@ -385,7 +385,7 @@
 
        ctrl->gnttab = xc_gnttab_open(logger, 0);
        if (!ctrl->gnttab)
-               goto out;
+               goto fail;
 
 // set up event channel
        if (init_evt_cli(ctrl, domain, logger))

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