JFS: Remove redundant kfree() NULL pointer checks

kfree() can handle a NULL pointer, don't worry about passing it one. 

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
diff --git a/fs/jfs/acl.c b/fs/jfs/acl.c
index 8d2a9ab..30a2bf9 100644
--- a/fs/jfs/acl.c
+++ b/fs/jfs/acl.c
@@ -70,8 +70,7 @@
 		if (!IS_ERR(acl))
 			*p_acl = posix_acl_dup(acl);
 	}
-	if (value)
-		kfree(value);
+	kfree(value);
 	return acl;
 }
 
@@ -112,8 +111,7 @@
 	}
 	rc = __jfs_setxattr(inode, ea_name, value, size, 0);
 out:
-	if (value)
-		kfree(value);
+	kfree(value);
 
 	if (!rc) {
 		if (*p_acl && (*p_acl != JFS_ACL_NOT_CACHED))
diff --git a/fs/jfs/xattr.c b/fs/jfs/xattr.c
index 7a9ffd5..6016373 100644
--- a/fs/jfs/xattr.c
+++ b/fs/jfs/xattr.c
@@ -946,8 +946,7 @@
       out:
 	up_write(&JFS_IP(inode)->xattr_sem);
 
-	if (os2name)
-		kfree(os2name);
+	kfree(os2name);
 
 	return rc;
 }
@@ -1042,8 +1041,7 @@
       out:
 	up_read(&JFS_IP(inode)->xattr_sem);
 
-	if (os2name)
-		kfree(os2name);
+	kfree(os2name);
 
 	return size;
 }