Initialize buf to NULL to avoid crashing when called by fix_problem()

diff --git a/e2fsck/util.c b/e2fsck/util.c
index e3a840c..227e41d 100644 (file)
--- a/e2fsck/util.c
+++ b/e2fsck/util.c
@@ -323,7 +323,7 @@ blk_t get_backup_sb(e2fsck_t ctx, ext2_filsys fs, const char *name,
 {
        struct ext2_super_block *sb;
        io_channel              io = NULL;
-       void                    *buf;
+       void                    *buf = NULL;
        int                     blocksize;
        blk_t                   superblock, ret_sb = 8193;