ext4: fix error handling in ext4_ind_get_blocks()

(cherry picked from commit 2bba702d4f88d7b010ec37e2527b552588404ae7)

When an error happened in ext4_splice_branch we failed to notice that
in ext4_ind_get_blocks and mapped the buffer anyway. Fix the problem
by checking for error properly.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 21d51cdce7aad4b84672542fdf9eaf61a6975495..af06a509d1474383d24a9c038dee5515b774a91c 100644 (file)
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1022,7 +1022,7 @@ static int ext4_ind_get_blocks(handle_t *handle, struct inode *inode,
        if (!err)
                err = ext4_splice_branch(handle, inode, iblock,
                                         partial, indirect_blks, count);
-       else
+       if (err)
                goto cleanup;
 
        set_buffer_new(bh_result);