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mips/cps: Fix mips_cps_realize() error API violations 

The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL.  Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call.

mips_cps_realize() is wrong that way: it passes &err to multiple
object_property_set_FOO() without checking for failure, and then to
sysbus_realize().  Harmless, because the object_property_set_FOO()
can't actually fail here.

Fix by passing &error_abort instead.

Cc: Aleksandar Markovic <aleksandar.qemu.devel@gmail.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200630090351.1247703-20-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2020-06-30 11:03:44 +02:00
parent 3e9a88c372
commit 81f66cfd24
1 changed files with 19 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
hw/mips/cps.c
View File

@ -100,10 +100,12 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
/* Inter-Thread Communication Unit */
if (itu_present) {
object_initialize_child(OBJECT(dev), "itu", &s->itu, TYPE_MIPS_ITU);
object_property_set_int(OBJECT(&s->itu), 16, "num-fifo", &err);
object_property_set_int(OBJECT(&s->itu), 16, "num-semaphores", &err);
object_property_set_int(OBJECT(&s->itu), 16, "num-fifo",
&error_abort);
object_property_set_int(OBJECT(&s->itu), 16, "num-semaphores",
&error_abort);
object_property_set_bool(OBJECT(&s->itu), saar_present, "saar-present",
&err);
&error_abort);
if (saar_present) {
s->itu.saar = &env->CP0_SAAR;
}
@ -119,8 +121,10 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
/* Cluster Power Controller */
object_initialize_child(OBJECT(dev), "cpc", &s->cpc, TYPE_MIPS_CPC);
object_property_set_int(OBJECT(&s->cpc), s->num_vp, "num-vp", &err);
object_property_set_int(OBJECT(&s->cpc), 1, "vp-start-running", &err);
object_property_set_int(OBJECT(&s->cpc), s->num_vp, "num-vp",
&error_abort);
object_property_set_int(OBJECT(&s->cpc), 1, "vp-start-running",
&error_abort);
sysbus_realize(SYS_BUS_DEVICE(&s->cpc), &err);
if (err != NULL) {
error_propagate(errp, err);
@ -132,8 +136,10 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
/* Global Interrupt Controller */
object_initialize_child(OBJECT(dev), "gic", &s->gic, TYPE_MIPS_GIC);
object_property_set_int(OBJECT(&s->gic), s->num_vp, "num-vp", &err);
object_property_set_int(OBJECT(&s->gic), 128, "num-irq", &err);
object_property_set_int(OBJECT(&s->gic), s->num_vp, "num-vp",
&error_abort);
object_property_set_int(OBJECT(&s->gic), 128, "num-irq",
&error_abort);
sysbus_realize(SYS_BUS_DEVICE(&s->gic), &err);
if (err != NULL) {
error_propagate(errp, err);
@ -147,9 +153,12 @@ static void mips_cps_realize(DeviceState *dev, Error **errp)
gcr_base = env->CP0_CMGCRBase << 4;
object_initialize_child(OBJECT(dev), "gcr", &s->gcr, TYPE_MIPS_GCR);
object_property_set_int(OBJECT(&s->gcr), s->num_vp, "num-vp", &err);
object_property_set_int(OBJECT(&s->gcr), 0x800, "gcr-rev", &err);
object_property_set_int(OBJECT(&s->gcr), gcr_base, "gcr-base", &err);
object_property_set_int(OBJECT(&s->gcr), s->num_vp, "num-vp",
&error_abort);
object_property_set_int(OBJECT(&s->gcr), 0x800, "gcr-rev",
&error_abort);
object_property_set_int(OBJECT(&s->gcr), gcr_base, "gcr-base",
&error_abort);
object_property_set_link(OBJECT(&s->gcr), OBJECT(&s->gic.mr), "gic",
&error_abort);
object_property_set_link(OBJECT(&s->gcr), OBJECT(&s->cpc.mr), "cpc",