coda: switch coda_cnode_make() to sane API as well, clean coda_lookup()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

4 files changed, 27 insertions, 31 deletions

diff --git a/fs/coda/cnode.c b/fs/coda/cnode.c
index 8af67c9c47dd..911cf30d057d 100644
--- a/fs/coda/cnode.c
+++ b/fs/coda/cnode.c
@@ -88,24 +88,21 @@ struct inode * coda_iget(struct super_block * sb, struct CodaFid * fid,
    - link the two up if this is needed
    - fill in the attributes
 */
-int coda_cnode_make(struct inode **inode, struct CodaFid *fid, struct super_block *sb)
+struct inode *coda_cnode_make(struct CodaFid *fid, struct super_block *sb)
 {
         struct coda_vattr attr;
+        struct inode *inode;
         int error;
         
         /* We get inode numbers from Venus -- see venus source */
         error = venus_getattr(sb, fid, &attr);
-        if ( error ) {
-            *inode = NULL;
-            return error;
-        } 
+        if (error)
+                return ERR_PTR(error);
 
-        *inode = coda_iget(sb, fid, &attr);
-        if ( IS_ERR(*inode) ) {
+        inode = coda_iget(sb, fid, &attr);
+        if (IS_ERR(inode))
                 printk("coda_cnode_make: coda_iget failed\n");
-                return PTR_ERR(*inode);
-        }
-        return 0;
+        return inode;
 }
 
 
diff --git a/fs/coda/coda_fs_i.h b/fs/coda/coda_fs_i.h
index 1c17446f1afe..b24fdfd8a3f0 100644
--- a/fs/coda/coda_fs_i.h
+++ b/fs/coda/coda_fs_i.h
@@ -49,7 +49,7 @@ struct coda_file_info {
 #define C_DYING       0x4   /* from venus (which died) */
 #define C_PURGE       0x8
 
-int coda_cnode_make(struct inode **, struct CodaFid *, struct super_block *);
+struct inode *coda_cnode_make(struct CodaFid *, struct super_block *);
 struct inode *coda_iget(struct super_block *sb, struct CodaFid *fid, struct coda_vattr *attr);
 struct inode *coda_cnode_makectl(struct super_block *sb);
 struct inode *coda_fid_to_inode(struct CodaFid *fid, struct super_block *sb);
diff --git a/fs/coda/dir.c b/fs/coda/dir.c
index df0f9c1b01d3..177515829062 100644
--- a/fs/coda/dir.c
+++ b/fs/coda/dir.c
@@ -96,12 +96,11 @@ const struct file_operations coda_dir_operations = {
 /* access routines: lookup, readlink, permission */
 static struct dentry *coda_lookup(struct inode *dir, struct dentry *entry, struct nameidata *nd)
 {
-        struct inode *inode = NULL;
-        struct CodaFid resfid = { { 0, } };
-        int type = 0;
-        int error = 0;
+        struct super_block *sb = dir->i_sb;
         const char *name = entry->d_name.name;
         size_t length = entry->d_name.len;
+        struct inode *inode;
+        int type = 0;
 
         if (length > CODA_MAXNAMLEN) {
                 printk(KERN_ERR "name too long: lookup, %s (%*s)\n",
@@ -111,23 +110,21 @@ 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)) {
-                inode = coda_cnode_makectl(dir->i_sb);
+                inode = coda_cnode_makectl(sb);
                 type = CODA_NOCACHE;
-                goto exit;
+        } else {
+                struct CodaFid fid = { { 0, } };
+                int error = venus_lookup(sb, coda_i2f(dir), name, length,
+                                     &type, &fid);
+                inode = !error ? coda_cnode_make(&fid, sb) : ERR_PTR(error);
         }
 
-        error = venus_lookup(dir->i_sb, coda_i2f(dir), name, length,
-                             &type, &resfid);
-        if (!error)
-                error = coda_cnode_make(&inode, &resfid, dir->i_sb);
-
-        if (error && error != -ENOENT)
-                return ERR_PTR(error);
-
-exit:
-        if (inode && !IS_ERR(inode) && (type & CODA_NOCACHE))
+        if (!IS_ERR(inode) && (type & CODA_NOCACHE))
                 coda_flag_inode(inode, C_VATTR | C_PURGE);
 
+        if (inode == ERR_PTR(-ENOENT))
+                inode = NULL;
+
         return d_splice_alias(inode, entry);
 }
 
diff --git a/fs/coda/inode.c b/fs/coda/inode.c
index 1c08a8cd673a..5e2e1b3f068d 100644
--- a/fs/coda/inode.c
+++ b/fs/coda/inode.c
@@ -204,10 +204,12 @@ static int coda_fill_super(struct super_block *sb, void *data, int silent)
         printk("coda_read_super: rootfid is %s\n", coda_f2s(&fid));
         
         /* make root inode */
-        error = coda_cnode_make(&root, &fid, sb);
-        if ( error || !root ) {
-            printk("Failure of coda_cnode_make for root: error %d\n", error);
-            goto error;
+        root = coda_cnode_make(&fid, sb);
+        if (IS_ERR(root)) {
+                error = PTR_ERR(root);
+                printk("Failure of coda_cnode_make for root: error %d\n", error);
+                root = NULL;
+                goto error;
         } 
 
         printk("coda_read_super: rootinode is %ld dev %s\n",