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From: Eric Blake <eblake@redhat.com>
To: qemu-devel@nongnu.org
Cc: armbru@redhat.com, Kevin Wolf <kwolf@redhat.com>,
	Max Reitz <mreitz@redhat.com>,
	"open list:Block layer core" <qemu-block@nongnu.org>
Subject: [Qemu-devel] [PATCH v3 10/13] block: Simplify bdrv_append_temp_snapshot() logic
Date: Wed,  5 Apr 2017 14:47:38 -0500	[thread overview]
Message-ID: <20170405194741.18956-11-eblake@redhat.com> (raw)
In-Reply-To: <20170405194741.18956-1-eblake@redhat.com>

Noticed while checking Coccinelle results. Naming a label 'out:'
when it is only used on error paths is weird; meanwhile we know
that snapshot_options is NULL on success and that QDECREF(NULL)
is safe.  So merge the two exit paths into one.

Signed-off-by: Eric Blake <eblake@redhat.com>
---
 block.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/block.c b/block.c
index 9b87bf6..a13625f 100644
--- a/block.c
+++ b/block.c
@@ -2209,13 +2209,10 @@ static BlockDriverState *bdrv_append_temp_snapshot(BlockDriverState *bs,
         goto out;
     }

+out:
+    QDECREF(snapshot_options);
     g_free(tmp_filename);
     return bs_snapshot;
-
-out:
-    QDECREF(snapshot_options);
-    g_free(tmp_filename);
-    return NULL;
 }

 /*
-- 
2.9.3

  parent reply	other threads:[~2017-04-05 19:48 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-04-05 19:47 [Qemu-devel] [PATCH v3 00/13] qapi-related cleanups Eric Blake
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 01/13] pci: Use struct instead of QDict to pass back parameters Eric Blake
2017-04-05 22:04   ` Michael S. Tsirkin
2017-04-06  5:41   ` Marcel Apfelbaum
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 02/13] pci: Reduce scope of error injection Eric Blake
2017-04-05 19:57   ` Philippe Mathieu-Daudé
2017-04-05 22:04   ` Michael S. Tsirkin
2017-04-06  5:42   ` Marcel Apfelbaum
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 03/13] s390x: Drop useless casts Eric Blake
2017-04-05 19:57   ` Philippe Mathieu-Daudé
2017-04-06  7:36   ` Cornelia Huck
2017-04-06 13:31     ` Eric Blake
2017-04-06 13:53   ` Cornelia Huck
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 04/13] coccinelle: Add script to remove useless QObject casts Eric Blake
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 05/13] qobject: Drop " Eric Blake
2017-04-07  9:04   ` Stefan Hajnoczi
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 06/13] qobject: Add helper macros for common scalar insertions Eric Blake
2017-04-11 17:06   ` Markus Armbruster
2017-04-11 17:43     ` Eric Blake
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 07/13] block: Use simpler QDict/QList scalar insertion macros Eric Blake
2017-04-05 19:51   ` Richard W.M. Jones
2017-04-07  9:04   ` Stefan Hajnoczi
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 08/13] tests: " Eric Blake
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 09/13] qobject: " Eric Blake
2017-04-11 17:12   ` Markus Armbruster
2017-04-11 17:44     ` Eric Blake
2017-04-05 19:47 ` Eric Blake [this message]
2017-04-06  9:00   ` [Qemu-devel] [PATCH v3 10/13] block: Simplify bdrv_append_temp_snapshot() logic Kevin Wolf
2017-04-06 12:52     ` Eric Blake
2017-04-06 13:22       ` Eric Blake
2017-04-06 13:27       ` Kevin Wolf
2017-04-06 13:41         ` Eric Blake
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 11/13] QemuOpts: Simplify qemu_opts_to_qdict() Eric Blake
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 12/13] fdc-test: Avoid deprecated 'change' command Eric Blake
2017-04-05 20:52   ` John Snow
2017-04-06  8:56     ` [Qemu-devel] [Qemu-block] " Kevin Wolf
2017-04-05 19:47 ` [Qemu-devel] [PATCH v3 13/13] test-qga: Actually test 0xff sync bytes Eric Blake
2017-04-06 12:38 ` [Qemu-devel] [PATCH v3 00/13] qapi-related cleanups no-reply
2017-04-11 17:23 ` Markus Armbruster

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