mkfs.btrfs: free buffers allocated by pretty_sizes

found by valgrind:
==2559== 16 bytes in 1 blocks are definitely lost in loss record 3 of 19
==2559==    at 0x4C2720E: malloc (vg_replace_malloc.c:236)
==2559==    by 0x412F7E: pretty_sizes (utils.c:1054)
==2559==    by 0x4179E9: main (mkfs.c:1395)

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Signed-off-by: Hugo Mills <hugo@carfax.org.uk>

diff --git a/mkfs.c b/mkfs.c
index 428ec18..5701c0a 100644 (file)
--- a/mkfs.c
+++ b/mkfs.c
@@ -1175,6 +1175,7 @@ int main(int ac, char **av)
        char *output = "output.img";
        u64 num_of_meta_chunks = 0;
        u64 size_of_data = 0;
+       char *pretty_buf;
 
        while(1) {
                int c;
@@ -1392,7 +1393,8 @@ raid_groups:
        printf("fs created label %s on %s\n\tnodesize %u leafsize %u "
            "sectorsize %u size %s\n",
            label, first_file, nodesize, leafsize, sectorsize,
-           pretty_sizes(btrfs_super_total_bytes(&root->fs_info->super_copy)));
+           pretty_buf = pretty_sizes(btrfs_super_total_bytes(&root->fs_info->super_copy)));
+       free(pretty_buf);
 
        printf("%s\n", BTRFS_BUILD_VERSION);
        btrfs_commit_transaction(trans, root);