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From: Markus Armbruster <armbru@redhat.com>
To: qemu-devel@nongnu.org
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>,
	Christian Borntraeger <borntraeger@de.ibm.com>,
	afaerber@suse.de, Alexander Graf <agraf@suse.de>
Subject: [Qemu-devel] [PATCH 3/3] s390x: Replace unchecked qdev_init() by qdev_init_nofail()
Date: Thu,  5 Feb 2015 10:34:49 +0100	[thread overview]
Message-ID: <1423128889-18260-4-git-send-email-armbru@redhat.com> (raw)
In-Reply-To: <1423128889-18260-1-git-send-email-armbru@redhat.com>

s390_flic_init() is a helper to create and realize either
"s390-flic-kvm" or "s390-flic-qemu".  When qdev_init() fails, it
complains to stderr and succeeds.

Except it can't actually fail, because the "s390-flic-qemu" is a dummy
without a realize method, and "s390-flic-kvm"'s realize can't fail,
even when the kernel device is really unavailable.  Odd.

Replace qdev_init() by qdev_init_nofail() to make "can't fail" locally
obvious, and get rid of the unreachable error reporting.

Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
---
 hw/intc/s390_flic.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/hw/intc/s390_flic.c b/hw/intc/s390_flic.c
index 03c5e89..02e10b7 100644
--- a/hw/intc/s390_flic.c
+++ b/hw/intc/s390_flic.c
@@ -30,7 +30,6 @@ S390FLICState *s390_get_flic(void)
 void s390_flic_init(void)
 {
     DeviceState *dev;
-    int r;
 
     dev = s390_flic_kvm_create();
     if (!dev) {
@@ -38,10 +37,7 @@ void s390_flic_init(void)
         object_property_add_child(qdev_get_machine(), TYPE_QEMU_S390_FLIC,
                                   OBJECT(dev), NULL);
     }
-    r = qdev_init(dev);
-    if (r) {
-        error_report("flic: couldn't create qdev");
-    }
+    qdev_init_nofail(dev);
 }
 
 static int qemu_s390_register_io_adapter(S390FLICState *fs, uint32_t id,
-- 
1.9.3

  parent reply	other threads:[~2015-02-05  9:35 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-02-05  9:34 [Qemu-devel] [PATCH 0/3] Clean up misuse of qdev_init() in interrupt controller creation Markus Armbruster
2015-02-05  9:34 ` [Qemu-devel] [PATCH 1/3] PPC: Clean up misuse of qdev_init() in kvm-openpic creation Markus Armbruster
2015-02-18 14:43   ` Markus Armbruster
2015-02-25  0:04     ` Scott Wood
2015-02-25  9:32       ` Markus Armbruster
2015-02-05  9:34 ` [Qemu-devel] [PATCH 2/3] spapr: Clean up misuse of qdev_init() in xics-kvm creation Markus Armbruster
2015-02-18 14:42   ` Markus Armbruster
2015-02-23  0:31     ` David Gibson
2015-02-20 13:16   ` Alexander Graf
2015-02-05  9:34 ` Markus Armbruster [this message]
2015-02-18 14:45   ` [Qemu-devel] [PATCH 3/3] s390x: Replace unchecked qdev_init() by qdev_init_nofail() Markus Armbruster
2015-02-18 15:31     ` Cornelia Huck
2015-03-10 11:56       ` Cornelia Huck

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