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| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-10 10:46:03 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-01-10 11:13:13 -0500 |
| commit | 0b2c4e39c014219ef73f05ab580c284bf8e6af0a (patch) | |
| tree | 4447c0dbab25dc209f267c17123845b1d3bb8273 | |
| parent | 3e25eb9c4bb649acdddb333d10774b640190f727 (diff) | |
| download | lwn-0b2c4e39c014219ef73f05ab580c284bf8e6af0a.tar.gz lwn-0b2c4e39c014219ef73f05ab580c284bf8e6af0a.zip | |
coda: deal correctly with allocation failure from coda_cnode_makectl()
lookup should fail with ENOMEM, not silently make dentry negative.
Switched to saner calling conventions, while we are at it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| -rw-r--r-- | fs/coda/cnode.c | 21 | ||||
| -rw-r--r-- | fs/coda/coda_fs_i.h | 2 | ||||
| -rw-r--r-- | fs/coda/dir.c | 4 |
3 files changed, 12 insertions, 15 deletions
diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c index 6475877b0763..8af67c9c47dd 100644 --- a/fs/coda/cnode.c +++ b/fs/coda/cnode.c @@ -156,19 +156,16 @@ struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb) } /* the CONTROL inode is made without asking attributes from Venus */ -int coda_cnode_makectl(struct inode **inode, struct super_block *sb) +struct inode *coda_cnode_makectl(struct super_block *sb) { - int error = -ENOMEM; - - *inode = new_inode(sb); - if (*inode) { - (*inode)->i_ino = CTL_INO; - (*inode)->i_op = &coda_ioctl_inode_operations; - (*inode)->i_fop = &coda_ioctl_operations; - (*inode)->i_mode = 0444; - error = 0; + struct inode *inode = new_inode(sb); + if (inode) { + inode->i_ino = CTL_INO; + inode->i_op = &coda_ioctl_inode_operations; + inode->i_fop = &coda_ioctl_operations; + inode->i_mode = 0444; + return inode; } - - return error; + return ERR_PTR(-ENOMEM); } diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h index e35071b1de0e..1c17446f1afe 100644 --- a/fs/coda/coda_fs_i.h +++ b/fs/coda/coda_fs_i.h @@ -51,7 +51,7 @@ struct coda_file_info { int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *); struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr); -int coda_cnode_makectl(struct inode **inode, struct super_block *sb); +struct inode *coda_cnode_makectl(struct super_block *sb); struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb); void coda_replace_fid(struct inode *, struct CodaFid *, struct CodaFid *); diff --git a/fs/coda/dir.c b/fs/coda/dir.c index 83d2fd8ec24b..df0f9c1b01d3 100644 --- a/fs/coda/dir.c +++ b/fs/coda/dir.c @@ -111,7 +111,7 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struc /* control object, create inode on the fly */ if (coda_isroot(dir) && coda_iscontrol(name, length)) { - error = coda_cnode_makectl(&inode, dir->i_sb); + inode = coda_cnode_makectl(dir->i_sb); type = CODA_NOCACHE; goto exit; } @@ -125,7 +125,7 @@ static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struc return ERR_PTR(error); exit: - if (inode && (type & CODA_NOCACHE)) + if (inode && !IS_ERR(inode) && (type & CODA_NOCACHE)) coda_flag_inode(inode, C_VATTR | C_PURGE); return d_splice_alias(inode, entry); |