pstore: d_alloc_name() doesn't return an ERR_PTR

d_alloc_name() returns NULL on error.  Also I changed the error code
from -ENOSPC to -ENOMEM to reflect that we were short on RAM not disk
space.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 1 insertions, 2 deletions

diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c
index 71bf5f4ae84c..6a4123d1849c 100644
--- a/fs/pstore/inode.c
+++ b/fs/pstore/inode.c
@@ -345,9 +345,8 @@ int pstore_mkfile(enum pstore_type_id type, char *psname, u64 id, int count,
 
         mutex_lock(&root->d_inode->i_mutex);
 
-        rc = -ENOSPC;
         dentry = d_alloc_name(root, name);
-        if (IS_ERR(dentry))
+        if (!dentry)
                 goto fail_lockedalloc;
 
         memcpy(private->data, data, size);