ext4: Fix ext4_ext_journal_restart() to reflect errors up to the caller

Fix ext4_ext_journal_restart() so it returns any errors reported by
ext4_journal_extend() and ext4_journal_restart().

Signed-off-by: Shen Feng <shen@cn.fujitsu.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 3e966da..17ea8bb 100644 (file)
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -92,17 +92,16 @@ static void ext4_idx_store_pblock(struct ext4_extent_idx *ix, ext4_fsblk_t pb)
        ix->ei_leaf_hi = cpu_to_le16((unsigned long) ((pb >> 31) >> 1) & 0xffff);
 }
 
-static handle_t *ext4_ext_journal_restart(handle_t *handle, int needed)
+static int ext4_ext_journal_restart(handle_t *handle, int needed)
 {
        int err;
 
        if (handle->h_buffer_credits > needed)
-               return handle;
-       if (!ext4_journal_extend(handle, needed))
-               return handle;
-       err = ext4_journal_restart(handle, needed);
-
-       return handle;
+               return 0;
+       err = ext4_journal_extend(handle, needed);
+       if (err)
+               return err;
+       return ext4_journal_restart(handle, needed);
 }
 
 /*
@@ -1888,11 +1887,9 @@ ext4_ext_rm_leaf(handle_t *handle, struct inode *inode,
                credits += 2 * EXT4_QUOTA_TRANS_BLOCKS(inode->i_sb);
 #endif
 
-               handle = ext4_ext_journal_restart(handle, credits);
-               if (IS_ERR(handle)) {
-                       err = PTR_ERR(handle);
+               err = ext4_ext_journal_restart(handle, credits);
+               if (err)
                        goto out;
-               }
 
                err = ext4_ext_get_access(handle, inode, path + depth);
                if (err)