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From: Markus Armbruster <armbru@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Peter Maydell" <peter.maydell@linaro.org>,
	qemu-arm@nongnu.org, "Philippe Mathieu-Daudé" <philmd@redhat.com>,
	"Andrew Baumann" <Andrew.Baumann@microsoft.com>,
	"Jean-Christophe Dubois" <jcd@tribudubois.net>
Subject: [PATCH v2 25/25] arm/{bcm2835, fsl-imx25, fsl-imx6}: Fix realize error API violations
Date: Wed, 24 Jun 2020 10:37:37 +0200	[thread overview]
Message-ID: <20200624083737.3086768-26-armbru@redhat.com> (raw)
In-Reply-To: <20200624083737.3086768-1-armbru@redhat.com>

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.

bcm2835_peripherals_realize(), fsl_imx25_realize() and
fsl_imx6_realize() are wrong that way: they pass &err to
object_property_set_uint() and object_property_set_bool() without
checking it, and then to sysbus_realize().  Harmless, because the
former can't actually fail here.

Fix by passing &error_abort instead.

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Andrew Baumann <Andrew.Baumann@microsoft.com>
Cc: "Philippe Mathieu-Daudé" <philmd@redhat.com>
Cc: Jean-Christophe Dubois <jcd@tribudubois.net>
Cc: qemu-arm@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/arm/bcm2835_peripherals.c | 12 ++++--------
 hw/arm/fsl-imx25.c           | 12 +++++-------
 hw/arm/fsl-imx6.c            | 12 +++++-------
 3 files changed, 14 insertions(+), 22 deletions(-)

diff --git a/hw/arm/bcm2835_peripherals.c b/hw/arm/bcm2835_peripherals.c
index 1e975d7eec..7ffdf62067 100644
--- a/hw/arm/bcm2835_peripherals.c
+++ b/hw/arm/bcm2835_peripherals.c
@@ -283,16 +283,12 @@ static void bcm2835_peripherals_realize(DeviceState *dev, Error **errp)
      * For the exact details please refer to the Arasan documentation:
      *   SD3.0_Host_AHB_eMMC4.4_Usersguide_ver5.9_jan11_10.pdf
      */
-    object_property_set_uint(OBJECT(&s->sdhci), 3, "sd-spec-version", &err);
+    object_property_set_uint(OBJECT(&s->sdhci), 3, "sd-spec-version",
+                             &error_abort);
     object_property_set_uint(OBJECT(&s->sdhci), BCM2835_SDHC_CAPAREG, "capareg",
-                             &err);
+                             &error_abort);
     object_property_set_bool(OBJECT(&s->sdhci), true, "pending-insert-quirk",
-                             &err);
-    if (err) {
-        error_propagate(errp, err);
-        return;
-    }
-
+                             &error_abort);
     sysbus_realize(SYS_BUS_DEVICE(&s->sdhci), &err);
     if (err) {
         error_propagate(errp, err);
diff --git a/hw/arm/fsl-imx25.c b/hw/arm/fsl-imx25.c
index f32f9bce0f..7ab5c98fbe 100644
--- a/hw/arm/fsl-imx25.c
+++ b/hw/arm/fsl-imx25.c
@@ -260,15 +260,13 @@ static void fsl_imx25_realize(DeviceState *dev, Error **errp)
         };
 
         object_property_set_uint(OBJECT(&s->esdhc[i]), 2, "sd-spec-version",
-                                 &err);
+                                 &error_abort);
         object_property_set_uint(OBJECT(&s->esdhc[i]), IMX25_ESDHC_CAPABILITIES,
-                                 "capareg", &err);
+                                 "capareg",
+                                 &error_abort);
         object_property_set_uint(OBJECT(&s->esdhc[i]), SDHCI_VENDOR_IMX,
-                                 "vendor", &err);
-        if (err) {
-            error_propagate(errp, err);
-            return;
-        }
+                                 "vendor",
+                                 &error_abort);
         sysbus_realize(SYS_BUS_DEVICE(&s->esdhc[i]), &err);
         if (err) {
             error_propagate(errp, err);
diff --git a/hw/arm/fsl-imx6.c b/hw/arm/fsl-imx6.c
index d4bc4fae93..4ae3c3efc2 100644
--- a/hw/arm/fsl-imx6.c
+++ b/hw/arm/fsl-imx6.c
@@ -336,15 +336,13 @@ static void fsl_imx6_realize(DeviceState *dev, Error **errp)
 
         /* UHS-I SDIO3.0 SDR104 1.8V ADMA */
         object_property_set_uint(OBJECT(&s->esdhc[i]), 3, "sd-spec-version",
-                                 &err);
+                                 &error_abort);
         object_property_set_uint(OBJECT(&s->esdhc[i]), IMX6_ESDHC_CAPABILITIES,
-                                 "capareg", &err);
+                                 "capareg",
+                                 &error_abort);
         object_property_set_uint(OBJECT(&s->esdhc[i]), SDHCI_VENDOR_IMX,
-                                 "vendor", &err);
-        if (err) {
-            error_propagate(errp, err);
-            return;
-        }
+                                 "vendor",
+                                 &error_abort);
         sysbus_realize(SYS_BUS_DEVICE(&s->esdhc[i]), &err);
         if (err) {
             error_propagate(errp, err);
-- 
2.26.2



      parent reply	other threads:[~2020-06-24  8:47 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-24  8:37 [PATCH v2 00/25] Error handling fixes & cleanups Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 01/25] net/virtio: Fix failover_replug_primary() return value regression Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 02/25] pci: Delete useless error_propagate() Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 03/25] Clean up some calls to ignore Error objects the right way Markus Armbruster
2020-06-24  9:02   ` Greg Kurz
2020-06-25  6:42     ` Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 04/25] tests: Use &error_abort where appropriate Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 05/25] tests: Use error_free_or_abort() " Markus Armbruster
2020-06-24 14:42   ` Eric Blake
2020-06-24  8:37 ` [PATCH v2 06/25] usb/dev-mtp: Fix Error double free after inotify failure Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 07/25] spapr: Plug minor memory leak in spapr_machine_init() Markus Armbruster
2020-06-24  9:04   ` Greg Kurz
2020-06-25  3:52   ` David Gibson
2020-06-24  8:37 ` [PATCH v2 08/25] qga: Plug unlikely memory leak in guest-set-memory-blocks Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 09/25] sd/milkymist-memcard: Plug minor memory leak in realize Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 10/25] test-util-filemonitor: Plug unlikely memory leak Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 11/25] vnc: Plug minor memory leak in vnc_display_open() Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 12/25] aspeed: Clean up roundabout error propagation Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 13/25] qdev: Drop qbus_set_bus_hotplug_handler() parameter @errp Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 14/25] qdev: Drop qbus_set_hotplug_handler() " Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 15/25] hw: Fix error API violation around object_property_set_link() Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 16/25] hw/arm: Drop useless object_property_set_link() error handling Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 17/25] riscv/sifive_u: Fix sifive_u_soc_realize() error API violations Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 18/25] riscv_hart: Fix riscv_harts_realize() " Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 19/25] mips/cps: Fix mips_cps_realize() " Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 20/25] x86: Fix x86_cpu_new() " Markus Armbruster
2020-06-24 14:17   ` Igor Mammedov
2020-06-24 14:20     ` Paolo Bonzini
2020-06-25  6:44       ` Markus Armbruster
2020-06-25 19:29       ` Igor Mammedov
2020-06-26 12:54     ` Markus Armbruster
2020-07-13 15:50       ` Igor Mammedov
2020-07-14  9:49         ` Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 21/25] amd_iommu: Fix amdvi_realize() error API violation Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 22/25] arm/stm32f205 arm/stm32f405: Fix realize " Markus Armbruster
2020-06-24 19:17   ` Alistair Francis
2020-06-24  8:37 ` [PATCH v2 23/25] aspeed: " Markus Armbruster
2020-06-24  8:37 ` [PATCH v2 24/25] hw/arm/armsse: Fix armsse_realize() " Markus Armbruster
2020-06-24  8:37 ` Markus Armbruster [this message]

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