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[Qemu-commits] [COMMIT eb0b64f] Do not attempt to allocate sn_tab when t
From: |
Anthony Liguori |
Subject: |
[Qemu-commits] [COMMIT eb0b64f] Do not attempt to allocate sn_tab when there are nosnapshots |
Date: |
Thu, 21 May 2009 01:44:16 -0000 |
From: malc <address@hidden>
This was caught by a7d27b536ffc0773028a90f14580552c0c3ddb2a which
aborted on this attempt, thanks to Alex Ivanov for report.
Signed-off-by: malc <address@hidden>
diff --git a/block/qcow2.c b/block/qcow2.c
index a6de9b6..33f3299 100644
--- a/block/qcow2.c
+++ b/block/qcow2.c
@@ -2259,6 +2259,11 @@ static int qcow_snapshot_list(BlockDriverState *bs,
QCowSnapshot *sn;
int i;
+ if (!s->nb_snapshots) {
+ *psn_tab = NULL;
+ return s->nb_snapshots;
+ }
+
sn_tab = qemu_mallocz(s->nb_snapshots * sizeof(QEMUSnapshotInfo));
for(i = 0; i < s->nb_snapshots; i++) {
sn_info = sn_tab + i;
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Anthony Liguori <=