error: Eliminate error_propagate() manually

When all we do with an Error we receive into a local variable is
propagating to somewhere else, we can just as well receive it there
right away.  The previous two commits did that for sufficiently simple
cases with Coccinelle.  Do it for several more manually.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-37-armbru@redhat.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
index 0336434..a0ce444 100644
--- a/hw/s390x/sclp.c
+++ b/hw/s390x/sclp.c
@@ -329,7 +329,6 @@ static void sclp_realize(DeviceState *dev, Error **errp)
 {
     MachineState *machine = MACHINE(qdev_get_machine());
     SCLPDevice *sclp = SCLP(dev);
-    Error *err = NULL;
     uint64_t hw_limit;
     int ret;
 
@@ -338,20 +337,17 @@ static void sclp_realize(DeviceState *dev, Error **errp)
      * as we can't find a fitting bus via the qom tree, we have to add the
      * event facility to the sysbus, so e.g. a sclp console can be created.
      */
-    if (!sysbus_realize(SYS_BUS_DEVICE(sclp->event_facility), &err)) {
-        goto out;
+    if (!sysbus_realize(SYS_BUS_DEVICE(sclp->event_facility), errp)) {
+        return;
     }
 
     ret = s390_set_memory_limit(machine->maxram_size, &hw_limit);
     if (ret == -E2BIG) {
-        error_setg(&err, "host supports a maximum of %" PRIu64 " GB",
+        error_setg(errp, "host supports a maximum of %" PRIu64 " GB",
                    hw_limit / GiB);
     } else if (ret) {
-        error_setg(&err, "setting the guest size failed");
+        error_setg(errp, "setting the guest size failed");
     }
-
-out:
-    error_propagate(errp, err);
 }
 
 static void sclp_memory_init(SCLPDevice *sclp)