From: Al Viro <viro@zeniv.linux.org.uk>
Date: Thu, 19 Jul 2012 12:23:13 +0000 (+0400)
Subject: pull unlock+dput() out into do_spu_create()
X-Git-Tag: upstream/snapshot3+hdmi~6890^2~50
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=25b2692a8ace4c2684d3899a0bfe55f8c4248899;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

pull unlock+dput() out into do_spu_create()

... and cleaning spufs_create() a bit, while we are at it

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

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 0576c44..dba1ce2 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -582,39 +582,32 @@ static struct file_system_type spufs_type;
 long spufs_create(struct path *path, struct dentry *dentry,
 		unsigned int flags, umode_t mode, struct file *filp)
 {
+	struct inode *dir = path->dentry->d_inode;
 	int ret;
 
-	ret = -EINVAL;
 	/* check if we are on spufs */
 	if (path->dentry->d_sb->s_type != &spufs_type)
-		goto out;
+		return -EINVAL;
 
 	/* don't accept undefined flags */
 	if (flags & (~SPU_CREATE_FLAG_ALL))
-		goto out;
+		return -EINVAL;
 
 	/* only threads can be underneath a gang */
-	if (path->dentry != path->dentry->d_sb->s_root) {
-		if ((flags & SPU_CREATE_GANG) ||
-		    !SPUFS_I(path->dentry->d_inode)->i_gang)
-			goto out;
-	}
+	if (path->dentry != path->dentry->d_sb->s_root)
+		if ((flags & SPU_CREATE_GANG) || !SPUFS_I(dir)->i_gang)
+			return -EINVAL;
 
 	mode &= ~current_umask();
 
 	if (flags & SPU_CREATE_GANG)
-		ret = spufs_create_gang(path->dentry->d_inode,
-					 dentry, path->mnt, mode);
+		ret = spufs_create_gang(dir, dentry, path->mnt, mode);
 	else
-		ret = spufs_create_context(path->dentry->d_inode,
-					    dentry, path->mnt, flags, mode,
+		ret = spufs_create_context(dir, dentry, path->mnt, flags, mode,
 					    filp);
 	if (ret >= 0)
-		fsnotify_mkdir(path->dentry->d_inode, dentry);
+		fsnotify_mkdir(dir, dentry);
 
-out:
-	mutex_unlock(&path->dentry->d_inode->i_mutex);
-	dput(dentry);
 	return ret;
 }
 
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index 5665dcc..8591bb6 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -70,6 +70,8 @@ static long do_spu_create(const char __user *pathname, unsigned int flags,
 	ret = PTR_ERR(dentry);
 	if (!IS_ERR(dentry)) {
 		ret = spufs_create(&path, dentry, flags, mode, neighbor);
+		mutex_unlock(&path.dentry->d_inode->i_mutex);
+		dput(dentry);
 		path_put(&path);
 	}