When btrfs-image failed to create an image, the invalid output file
had better be deleted to prevent being used mistakenly in the future.
Signed-off-by: Gui Hecheng <guihc.f...@cn.fujitsu.com>
---
changelog
v1->v2: use a new local variable to avoid return value overwritten
v2->v3: fix patch format problem: tailing whitespace
---
btrfs-image.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/btrfs-image.c b/btrfs-image.c
index 9e5b8b3..1a3e6ca 100644
--- a/btrfs-image.c
+++ b/btrfs-image.c
@@ -2608,8 +2608,18 @@ int main(int argc, char *argv[])
out:
if (out == stdout)
fflush(out);
- else
+ else {
fclose(out);
+ if (ret && create) {
+ int unlink_ret;
+
+ unlink_ret = unlink(target);
+ if (unlink_ret)
+ fprintf(stderr,
+ "unlink output file failed : %s\n",
+ strerror(errno));
+ }
+ }
return !!ret;
}
--
1.8.1.4
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