[Cbe-oss-dev] [PATCH] powerpc/spufs: add a missing mutex_unlock

[Kou Ishizaki]

A mutex_unlock(&gang->aff_mutex) in spufs_create_context() is missing
in case spufs_context_open() fails.  As a result, spu_create syscall
and spu_get_idle() may block.

This patch adds the mutex_unlock.

Signed-off-by: Kou Ishizaki <kou.ishizaki at toshiba.co.jp>
---
 arch/powerpc/platforms/cell/spufs/inode.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index 690ca7b..5c73b62 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -496,5 +496,7 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 	ret = spufs_context_open(dget(dentry), mntget(mnt));
 	if (ret < 0) {
 		WARN_ON(spufs_rmdir(inode, dentry));
+		if (affinity)
+			mutex_unlock(&gang->aff_mutex);
 		mutex_unlock(&inode->i_mutex);
 		spu_forget(SPUFS_I(dentry->d_inode)->i_ctx);
		goto out;