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bh=nb7MgsXtYZ2X5YyIuOdODBAV8JiQjFyYIVMeqm+HCbQ=; b=Eu5qGQ5BBTSDlYvFuD2sUQDNJOmZp4ixAh8EaGlnpltGbjo+RimuK/Yzey6D++U5U4lqLy CTz554kq8m6gWmZh+Yqoho0FV8BlwQJ+fffuhTQpNw9x5BJdJiul324CcUm8365A1n3t4P +kt1sLtEi1Yt1bKeclZ7zJkXSPuPbcI= X-MC-Unique: 3BHTXHOmPzOuL-6xkfAg0g-1 From: Markus Armbruster To: qemu-devel@nongnu.org Subject: [PATCH v2 19/25] mips/cps: Fix mips_cps_realize() error API violations Date: Wed, 24 Jun 2020 10:37:31 +0200 Message-Id: <20200624083737.3086768-20-armbru@redhat.com> In-Reply-To: <20200624083737.3086768-1-armbru@redhat.com> References: <20200624083737.3086768-1-armbru@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=207.211.31.81; envelope-from=armbru@redhat.com; helo=us-smtp-delivery-1.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/06/24 01:59:40 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H3=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Aleksandar Markovic , Aleksandar Rikalo , Aurelien Jarno Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" 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 Cc: Aurelien Jarno Cc: Aleksandar Rikalo Signed-off-by: Markus Armbruster --- hw/mips/cps.c | 29 +++++++++++++++++++---------- 1 file changed, 19 insertions(+), 10 deletions(-) diff --git a/hw/mips/cps.c b/hw/mips/cps.c index 5382bc86f7..0d7f3cf673 100644 --- a/hw/mips/cps.c +++ b/hw/mips/cps.c @@ -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", &er= r); + 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-pres= ent", - &err); + &error_abort); if (saar_present) { s->itu.saar =3D &env->CP0_SAAR; } @@ -119,8 +121,10 @@ static void mips_cps_realize(DeviceState *dev, Error *= *errp) =20 /* 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 !=3D NULL) { error_propagate(errp, err); @@ -132,8 +136,10 @@ static void mips_cps_realize(DeviceState *dev, Error *= *errp) =20 /* 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 !=3D NULL) { error_propagate(errp, err); @@ -147,9 +153,12 @@ static void mips_cps_realize(DeviceState *dev, Error *= *errp) gcr_base =3D env->CP0_CMGCRBase << 4; =20 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", --=20 2.26.2