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From: Cornelia Huck <cohuck@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Cornelia Huck <cohuck@redhat.com>,
	qemu-s390x@nongnu.org, David Hildenbrand <david@redhat.com>,
	qemu-devel@nongnu.org, Markus Armbruster <armbru@redhat.com>
Subject: [PULL v2 10/16] s390x/event-facility: Fix realize() error API violations
Date: Sat, 14 Dec 2019 10:45:20 +0100	[thread overview]
Message-ID: <20191214094526.8698-11-cohuck@redhat.com> (raw)
In-Reply-To: <20191214094526.8698-1-cohuck@redhat.com>

From: Markus Armbruster <armbru@redhat.com>

sclp_events_bus_realize() dereferences @errp when
object_property_set_bool() fails.  That's wrong; see the big comment
in error.h.  Introduced in commit f6102c329c "s390/sclp: rework sclp
event facility initialization + device realization".

No caller actually passes null.

Fix anyway: splice in a local Error *err, and error_propagate().

Cc: David Hildenbrand <david@redhat.com>
Cc: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20191204093625.14836-12-armbru@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
---
 hw/s390x/event-facility.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/hw/s390x/event-facility.c b/hw/s390x/event-facility.c
index 66205697ae75..cdcf9154c49e 100644
--- a/hw/s390x/event-facility.c
+++ b/hw/s390x/event-facility.c
@@ -339,14 +339,16 @@ out:
 
 static void sclp_events_bus_realize(BusState *bus, Error **errp)
 {
+    Error *err = NULL;
     BusChild *kid;
 
     /* TODO: recursive realization has to be done in common code */
     QTAILQ_FOREACH(kid, &bus->children, sibling) {
         DeviceState *dev = kid->child;
 
-        object_property_set_bool(OBJECT(dev), true, "realized", errp);
-        if (*errp) {
+        object_property_set_bool(OBJECT(dev), true, "realized", &err);
+        if (errp) {
+            error_propagate(errp, err);
             return;
         }
     }
-- 
2.21.0



  parent reply	other threads:[~2019-12-14  9:54 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-14  9:45 [PULL v2 00/16] first s390x update for 5.0 Cornelia Huck
2019-12-14  9:45 ` [PULL v2 01/16] vfio-ccw: Fix error message Cornelia Huck
2019-12-14  9:45 ` [PULL v2 02/16] hw: add compat machines for 5.0 Cornelia Huck
2019-12-14  9:45 ` [PULL v2 03/16] s390x: Don't do a normal reset on the initial cpu Cornelia Huck
2019-12-14  9:45 ` [PULL v2 04/16] s390x: Move reset normal to shared reset handler Cornelia Huck
2019-12-14  9:45 ` [PULL v2 05/16] s390x: Move initial reset Cornelia Huck
2019-12-14  9:45 ` [PULL v2 06/16] s390x: Move clear reset Cornelia Huck
2019-12-14  9:45 ` [PULL v2 07/16] s390x: Beautify diag308 handling Cornelia Huck
2019-12-14  9:45 ` [PULL v2 08/16] s390x: kvm: Make kvm_sclp_service_call void Cornelia Huck
2019-12-14  9:45 ` [PULL v2 09/16] s390x: Fix cpu normal reset ri clearing Cornelia Huck
2019-12-14  9:45 ` Cornelia Huck [this message]
2019-12-14  9:45 ` [PULL v2 11/16] s390x/cpumodel: Fix feature property error API violations Cornelia Huck
2019-12-14  9:45 ` [PULL v2 12/16] s390x/cpumodel: Fix realize() " Cornelia Huck
2019-12-14  9:45 ` [PULL v2 13/16] s390x/cpumodel: Fix query-cpu-model-FOO " Cornelia Huck
2019-12-14  9:45 ` [PULL v2 14/16] s390x/cpumodel: Fix query-cpu-definitions " Cornelia Huck
2019-12-14  9:45 ` [PULL v2 15/16] s390x/tcg: clear local interrupts on reset normal Cornelia Huck
2019-12-14  9:45 ` [PULL v2 16/16] qga: fence guest-set-time if hwclock not available Cornelia Huck
2020-01-03 12:05   ` Peter Maydell
2019-12-16 13:04 ` [PULL v2 00/16] first s390x update for 5.0 Peter Maydell

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