When open_ctree(device, ...) failed, the return value should be checked.
Signed-off-by: Cheng Yang <chenyang.fnst@xxxxxxxxxxxxxx>
---
btrfstune.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/btrfstune.c b/btrfstune.c
index 47830c5..07648d5 100644
--- a/btrfstune.c
+++ b/btrfstune.c
@@ -107,6 +107,8 @@ int main(int argc, char *argv[])
}
root = open_ctree(device, 0, 1);
+ if (!root)
+ return 1;
if (seeding_flag) {
ret = update_seeding_flag(root, seeding_value);
--
1.7.7.6
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