diff options
| -rw-r--r-- | fs/ext4/ioctl.c | 28 |
1 files changed, 18 insertions, 10 deletions
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c index c1a98804a383..b81a5f1b6976 100644 --- a/fs/ext4/ioctl.c +++ b/fs/ext4/ioctl.c @@ -184,19 +184,22 @@ setversion_out: if (err) return err; - if (get_user(n_blocks_count, (__u32 __user *)arg)) - return -EFAULT; + if (get_user(n_blocks_count, (__u32 __user *)arg)) { + err = -EFAULT; + goto group_extend_out; + } if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_BIGALLOC)) { ext4_msg(sb, KERN_ERR, "Online resizing not supported with bigalloc"); - return -EOPNOTSUPP; + err = -EOPNOTSUPP; + goto group_extend_out; } err = mnt_want_write(filp->f_path.mnt); if (err) - return err; + goto group_extend_out; err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count); if (EXT4_SB(sb)->s_journal) { @@ -206,9 +209,10 @@ setversion_out: } if (err == 0) err = err2; + mnt_drop_write(filp->f_path.mnt); +group_extend_out: ext4_resize_end(sb); - return err; } @@ -267,19 +271,22 @@ mext_out: return err; if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg, - sizeof(input))) - return -EFAULT; + sizeof(input))) { + err = -EFAULT; + goto group_add_out; + } if (EXT4_HAS_RO_COMPAT_FEATURE(sb, EXT4_FEATURE_RO_COMPAT_BIGALLOC)) { ext4_msg(sb, KERN_ERR, "Online resizing not supported with bigalloc"); - return -EOPNOTSUPP; + err = -EOPNOTSUPP; + goto group_add_out; } err = mnt_want_write(filp->f_path.mnt); if (err) - return err; + goto group_add_out; err = ext4_group_add(sb, &input); if (EXT4_SB(sb)->s_journal) { @@ -289,9 +296,10 @@ mext_out: } if (err == 0) err = err2; + mnt_drop_write(filp->f_path.mnt); +group_add_out: ext4_resize_end(sb); - return err; } |