In case spufs_fill_dir() fails only put_spu_context() 
gets called for cleanup and the acquired mm_struct never gets freed.

Signed-off-by: Sebastian Siewior <bigeasy@linux.vnet.ibm.com>
Index: ps3-linux/arch/powerpc/platforms/cell/spufs/inode.c
===================================================================
--- ps3-linux.orig/arch/powerpc/platforms/cell/spufs/inode.c
+++ ps3-linux/arch/powerpc/platforms/cell/spufs/inode.c
@@ -277,6 +277,7 @@ spufs_mkdir(struct inode *dir, struct de
 	goto out;
 
 out_free_ctx:
+	spu_forget(ctx);
 	put_spu_context(ctx);
 out_iput:
 	iput(inode);