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Re: [PATCH v10 4/3] hw/sd/ssi-sd: fix error handling in ssi_sd_realize


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v10 4/3] hw/sd/ssi-sd: fix error handling in ssi_sd_realize
Date: Tue, 17 Mar 2020 15:13:59 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0

On 3/17/20 1:57 PM, Vladimir Sementsov-Ogievskiy wrote:
It's wrong to use same err object as errp parameter for several
function calls without intermediate checking for error: we'll crash if
try to set err object twice. Fix that.

Signed-off-by: Vladimir Sementsov-Ogievskiy <address@hidden>
---

Forgive me for sending this into your series, but seems it is very
appropriate.

It's rephrasing  of my
  [PATCH v9 03/10] hw/sd/ssi-sd: fix error handling in ssi_sd_realize
for partI series but but without use of ERRP_AUTO_PROPAGATE.

  hw/sd/ssi-sd.c | 16 ++++++++++++++--
  1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/hw/sd/ssi-sd.c b/hw/sd/ssi-sd.c
index 91db069212..829797b597 100644
--- a/hw/sd/ssi-sd.c
+++ b/hw/sd/ssi-sd.c
@@ -255,13 +255,25 @@ static void ssi_sd_realize(SSISlave *d, Error **errp)
      carddev = qdev_create(BUS(&s->sdbus), TYPE_SD_CARD);
      if (dinfo) {
          qdev_prop_set_drive(carddev, "drive", blk_by_legacy_dinfo(dinfo), 
&err);
+        if (err) {
+            goto fail;
+        }
      }
+
      object_property_set_bool(OBJECT(carddev), true, "spi", &err);
+    if (err) {
+        goto fail;
+    }
+
      object_property_set_bool(OBJECT(carddev), true, "realized", &err);
      if (err) {
-        error_setg(errp, "failed to init SD card: %s", error_get_pretty(err));
-        return;
+        goto fail;
      }
+
+    return;
+
+fail:
+    error_propagate_prepend(errp, err, "failed to init SD card: ");
  }
static void ssi_sd_reset(DeviceState *dev)


Reviewed-by: Philippe Mathieu-Daudé <address@hidden>




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