On 2011年12月08日 14:09, ajia@xxxxxxxxxx wrote:
From: Alex Jia<ajia@xxxxxxxxxx>
Detected by valgrind. Leak introduced in commit e9bd9a0:
* tools/virsh.c: fix memory leak on cmdBlkdeviotune.
* how to reproduce?
% valgrind -v --leak-check=full virsh blkdeviotune<domain name> <block device>
* actual valgrind result:
==12759== 576 bytes in 1 blocks are definitely lost in loss record 18 of 29
==12759== at 0x4A04A28: calloc (vg_replace_malloc.c:467)
==12759== by 0x42134E: _vshCalloc.clone.2 (virsh.c:422)
==12759== by 0x4217CB: cmdBlkdeviotune (virsh.c:6364)
==12759== by 0x4136A2: vshCommandRun (virsh.c:16363)
==12759== by 0x4253FB: main (virsh.c:17865)
==12759==
==12759== LEAK SUMMARY:
==12759== definitely lost: 576 bytes in 1 blocks
==12759== indirectly lost: 0 bytes in 0 blocks
==12759== possibly lost: 0 bytes in 0 blocks
==12759== still reachable: 126,964 bytes in 1,342 blocks
==12759== suppressed: 0 bytes in 0 blocks
Signed-off-by: Alex Jia<ajia@xxxxxxxxxx>
---
tools/virsh.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/virsh.c b/tools/virsh.c
index a51478f..e6e4f8b 100644
--- a/tools/virsh.c
+++ b/tools/virsh.c
@@ -6400,8 +6400,8 @@ cmdBlkdeviotune(vshControl *ctl, const vshCmd *cmd)
}
}
- virDomainFree(dom);
- return true;
+ ret = true;
+ goto cleanup;
} else {
/* Set the block I/O throttle, match by opt since parameters can be 0 */
params = vshCalloc(ctl, nparams, sizeof(*params));
ACK.
Osier
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