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Btrfs: Make sure dir is non-null before doing S_ISGID checks

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The S_ISGID check in btrfs_new_inode caused an oops during subvol creation
because sometimes the dir is null.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
This commit is contained in:
Chris Mason 2009-02-06 11:35:57 -05:00
parent 806638bce9
commit 42f15d77df
1 changed files with 1 additions and 1 deletions

2
fs/btrfs/inode.c
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@ -3491,7 +3491,7 @@ static struct inode *btrfs_new_inode(struct btrfs_trans_handle *trans,
inode->i_uid = current_fsuid(); inode->i_uid = current_fsuid();
if (dir->i_mode & S_ISGID) { if (dir && (dir->i_mode & S_ISGID)) {
inode->i_gid = dir->i_gid; inode->i_gid = dir->i_gid;
if (S_ISDIR(mode)) if (S_ISDIR(mode))
mode |= S_ISGID; mode |= S_ISGID;