xics: fix several error leaks
commita1a6bbde4f6a29368f8f605cea2e73630ec1bc7c
authorGreg Kurz <groug@kaod.org>
Mon, 11 Sep 2017 22:04:40 +0000 (12 00:04 +0200)
committerDavid Gibson <david@gibson.dropbear.id.au>
Fri, 15 Sep 2017 00:29:48 +0000 (15 10:29 +1000)
tree3df3df454f3c0aab4b8e0b7dca9439ff3a003016
parente100161b69f8cf56dae866912dfffe7dcd7140af
xics: fix several error leaks

If object_property_get_link() fails then it allocates an error, which
must be freed before returning. The error_get_pretty() function is
merely an accessor to the error message and doesn't free anything.

The error.h header indicates how to do it right:

 * Pass an existing error to the caller with the message modified:
 *     error_propagate(errp, err);
 *     error_prepend(errp, "Could not frobnicate '%s': ", name);

Signed-off-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
hw/intc/xics.c