ocfs2: Fix check of return value of ocfs2_start_trans()

On failure, ocfs2_start_trans() returns values like ERR_PTR(-ENOMEM).
Thus checks for !handle are wrong. Fix them to use IS_ERR().

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
Signed-off-by: Mark Fasheh <mfasheh@suse.com>

diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 7efe937a415f6df1219aff0a076df14e56972a80..3138a385fdbb3383a3391b1a7dca62242aa567e1 100644 (file)
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -247,8 +247,8 @@ int ocfs2_update_inode_atime(struct inode *inode,
        mlog_entry_void();
 
        handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
-       if (handle == NULL) {
-               ret = -ENOMEM;
+       if (IS_ERR(handle)) {
+               ret = PTR_ERR(handle);
                mlog_errno(ret);
                goto out;
        }
@@ -312,8 +312,8 @@ static int ocfs2_simple_size_update(struct inode *inode,
        handle_t *handle = NULL;
 
        handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
-       if (handle == NULL) {
-               ret = -ENOMEM;
+       if (IS_ERR(handle)) {
+               ret = PTR_ERR(handle);
                mlog_errno(ret);
                goto out;
        }
@@ -1055,8 +1055,8 @@ static int __ocfs2_write_remove_suid(struct inode *inode,
                   (unsigned long long)OCFS2_I(inode)->ip_blkno, inode->i_mode);
 
        handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
-       if (handle == NULL) {
-               ret = -ENOMEM;
+       if (IS_ERR(handle)) {
+               ret = PTR_ERR(handle);
                mlog_errno(ret);
                goto out;
        }
@@ -1259,8 +1259,8 @@ static int __ocfs2_remove_inode_range(struct inode *inode,
        }
 
        handle = ocfs2_start_trans(osb, OCFS2_REMOVE_EXTENT_CREDITS);
-       if (handle == NULL) {
-               ret = -ENOMEM;
+       if (IS_ERR(handle)) {
+               ret = PTR_ERR(handle);
                mlog_errno(ret);
                goto out;
        }
@@ -1352,8 +1352,8 @@ static int ocfs2_zero_partial_clusters(struct inode *inode,
                goto out;
 
        handle = ocfs2_start_trans(osb, OCFS2_INODE_UPDATE_CREDITS);
-       if (handle == NULL) {
-               ret = -ENOMEM;
+       if (IS_ERR(handle)) {
+               ret = PTR_ERR(handle);
                mlog_errno(ret);
                goto out;
        }