[PATCH] erofs-utils: lib: fix NULL dereference

[Gao Xiang]

Coverity-id: 555136
Fixes: 84bae6acdbee ("erofs-utils: lib: keep full data until the fragment is committed")
Signed-off-by: Gao Xiang <hsiangkao at linux.alibaba.com>
---
 lib/fragments.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/fragments.c b/lib/fragments.c
index d63995e..0784a82 100644
--- a/lib/fragments.c
+++ b/lib/fragments.c
@@ -311,7 +311,7 @@ int erofs_pack_file_from_fd(struct erofs_inode *inode, int fd, u32 tofh)
 out:
 	if (onheap)
 		free(memblock);
-	else
+	else if (memblock)
 		munmap(memblock, inode->i_size);
 	return rc;
 }
-- 
2.43.5