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btrfs-progs: corrupt-block: use on-stack path buffer in corrupt_dir_item 

Signed-off-by: David Sterba <dsterba@suse.com>
master
David Sterba 2015-11-06 18:27:55 +01:00
parent d551d05bbc
commit 575ca96425
1 changed files with 1 additions and 7 deletions
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8
btrfs-corrupt-block.c
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@ -475,7 +475,7 @@ static int corrupt_dir_item(struct btrfs_root *root, struct btrfs_key *key,
struct btrfs_trans_handle *trans;
struct btrfs_dir_item *di;
struct btrfs_path *path;
char *name;
char name[PATH_MAX];
struct btrfs_key location;
struct btrfs_disk_key disk_key;
unsigned long name_ptr;
@ -514,17 +514,11 @@ static int corrupt_dir_item(struct btrfs_root *root, struct btrfs_key *key,
switch (corrupt_field) {
case BTRFS_DIR_ITEM_NAME:
name_len = btrfs_dir_name_len(path->nodes[0], di);
name = malloc(name_len);
if (!name) {
ret = -ENOMEM;
goto out;
}
name_ptr = (unsigned long)(di + 1);
read_extent_buffer(path->nodes[0], name, name_ptr, name_len);
name[0]++;
write_extent_buffer(path->nodes[0], name, name_ptr, name_len);
btrfs_mark_buffer_dirty(path->nodes[0]);
free(name);
goto out;
case BTRFS_DIR_ITEM_LOCATION_OBJECTID:
btrfs_dir_item_key_to_cpu(path->nodes[0], di, &location);