ext4: missing unlock/put_page() in ext4_try_to_write_inline_data()

In case of error, ext4_try_to_write_inline_data() should unlock
and release the page it holds.

Fixes: f19d5870 ("ext4: add normal write support for inline data")
Cc: stable@kernel.org # 3.8
Signed-off-by: Maurizio Lombardi <mlombard@redhat.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>

fs/ext4/inline.c

@@ -705,9 +705,12 @@ int ext4_try_to_write_inline_data(struct address_space *mapping,
 
 	if (!PageUptodate(page)) {
 		ret = ext4_read_inline_page(inode, page);
-		if (ret < 0)
+		if (ret < 0) {
+			unlock_page(page);
+			put_page(page);
 			goto out_up_read;
 		}
+	}
 
 	ret = 1;
 	handle = NULL;