libfuse: Assign NULL to "old" to avoid free it twice (#522)

Assign NULL to "old" at the first free(), to avoid the possible 2nd free() for it.

Signed-off-by: Liao Pingfang <liao.pingfang@zte.com.cn>
Co-authored-by: Liao Pingfang <liao.pingfang@zte.com.cn>

diff --git a/lib/modules/iconv.c b/lib/modules/iconv.c
index eb5edd8ebac3ce602c456a6b1cc859f6a6f857c1..3a4db7c761aa4e7a3382105672bc21c56c65947a 100644 (file)
--- a/lib/modules/iconv.c
+++ b/lib/modules/iconv.c
@@ -705,6 +705,7 @@ static struct fuse_fs *iconv_new(struct fuse_args *args,
        if (old) {
                setlocale(LC_CTYPE, old);
                free(old);
+               old = NULL;
        }
 
        ic->next = next[0];