ext4: Check for the correct error return from

ext4_ext_get_blocks returns negative values on error. We should
check for  <= 0

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>

1 files changed, 5 insertions, 5 deletions

diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 754c0d36d16..8593e59020f 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -2462,12 +2462,12 @@ retry:
                 ret = ext4_ext_get_blocks(handle, inode, block,
                                           max_blocks, &map_bh,
                                           EXT4_CREATE_UNINITIALIZED_EXT, 0);
-                WARN_ON(!ret);
-                if (!ret) {
+                WARN_ON(ret <= 0);
+                if (ret <= 0) {
                         ext4_error(inode->i_sb, "ext4_fallocate",
-                                   "ext4_ext_get_blocks returned 0! inode#%lu"
-                                   ", block=%u, max_blocks=%lu",
-                                   inode->i_ino, block, max_blocks);
+                                    "ext4_ext_get_blocks returned error: "
+                                    "inode#%lu, block=%u, max_blocks=%lu",
+                                    inode->i_ino, block, max_blocks);
                         ret = -EIO;
                         ext4_mark_inode_dirty(handle, inode);
                         ret2 = ext4_journal_stop(handle);