After commit_lock_file() is called, then the lock_file object is
necessarily either committed or rolled back.  So there is no need to
call rollback_lock_file() again in either of these cases.

Signed-off-by: Michael Haggerty <mhag...@alum.mit.edu>
---
 config.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/config.c b/config.c
index a677eb6..123ed29 100644
--- a/config.c
+++ b/config.c
@@ -2083,6 +2083,7 @@ int git_config_set_multivar_in_file(const char 
*config_filename,
        if (commit_lock_file(lock) < 0) {
                error("could not commit config file %s", config_filename);
                ret = CONFIG_NO_WRITE;
+               lock = NULL;
                goto out_free;
        }
 
-- 
2.1.0

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