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xen/pvcalls: fix null pointer dereference on map->sock

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Currently if map is null then a potential null pointer deference
occurs when calling sock_release on map->sock.  I believe the
actual intention was to call sock_release on sock instead. Fix
this.

Fixes: 5db4d286a8 ("xen/pvcalls: implement connect command")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Colin Ian King 2018-02-22 17:22:59 +00:00 committed by Juergen Gross
parent d1a75e0896
commit 68d2059be6
1 changed files with 1 additions and 1 deletions
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2
drivers/xen/pvcalls-back.c
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@ -416,7 +416,7 @@ static int pvcalls_back_connect(struct xenbus_device *dev,
sock);
if (!map) {
ret = -EFAULT;
sock_release(map->sock);
sock_release(sock);
}
out: