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authorKevin Wolf <kwolf@redhat.com>2011-03-31 12:39:51 +0200
committerKevin Wolf <kwolf@redhat.com>2011-04-07 13:51:48 +0200
commiteb863add0204210480d018a3298ca22e4eadf3ce (patch)
tree2f38b85a80b23733071f0c1e3262624fae968119 /qemu-img.c
parent6b837bc4a4d81861027c74f882d8c1d43f4ec30c (diff)
qemu-img rebase: Fix segfault if backing file can't be opened
bdrv_delete must not be called for a NULL BlockDriverState. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Diffstat (limited to 'qemu-img.c')
-rw-r--r--qemu-img.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/qemu-img.c b/qemu-img.c
index 074388ce89..d9c2c12fa0 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1411,8 +1411,12 @@ out:
qemu_progress_end();
/* Cleanup */
if (!unsafe) {
- bdrv_delete(bs_old_backing);
- bdrv_delete(bs_new_backing);
+ if (bs_old_backing != NULL) {
+ bdrv_delete(bs_old_backing);
+ }
+ if (bs_new_backing != NULL) {
+ bdrv_delete(bs_new_backing);
+ }
}
bdrv_delete(bs);