In function write_init_super1():
If "rv = store_super1(st, di->fd)" return error and the di is the last.
Then the di = NULL && rv > 0, so exec:
if (rv)
fprintf(stderr, Name ": Failed to write metadata to%s\n",
di->devname);
will be segmentation fault.
Signed-off-by: majianpeng <majianpeng@xxxxxxxxx>
---
super1.c | 2 ++
1 files changed, 2 insertions(+), 0 deletions(-)
diff --git a/super1.c b/super1.c
index 4f20cc3..37b7a90 100644
--- a/super1.c
+++ b/super1.c
@@ -1242,6 +1242,8 @@ static int write_init_super1(struct supertype *st)
rv = st->ss->write_bitmap(st, di->fd);
close(di->fd);
di->fd = -1;
+ if (rv)
+ goto error_out;
}
error_out:
if (rv)
--
1.7.5.4
--------------
majianpeng
2012-05-25
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