ext4: sparse fixes

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

fs/ext4/fsync.c

@@ -47,7 +47,7 @@ int ext4_sync_file(struct file * file, struct dentry *dentry, int datasync)
 	struct inode *inode = dentry->d_inode;
 	int ret = 0;
 
-	J_ASSERT(ext4_journal_current_handle() == 0);
+	J_ASSERT(ext4_journal_current_handle() == NULL);
 
 	/*
 	 * data=writeback:

fs/ext4/inode.c

@@ -1027,7 +1027,7 @@ struct buffer_head *ext4_getblk(handle_t *handle, struct inode *inode,
 		}
 		if (buffer_new(&dummy)) {
 			J_ASSERT(create != 0);
-			J_ASSERT(handle != 0);
+			J_ASSERT(handle != NULL);
 
 			/*
 			 * Now that we do not always journal data, we should

fs/ext4/xattr.c

@@ -1120,7 +1120,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
 	int total_ino, total_blk;
 	void *base, *start, *end;
 	int extra_isize = 0, error = 0, tried_min_extra_isize = 0;
-	int s_min_extra_isize = EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize;
+	int s_min_extra_isize = le16_to_cpu(EXT4_SB(inode->i_sb)->s_es->s_min_extra_isize);
 
 	down_write(&EXT4_I(inode)->xattr_sem);
 retry:
@@ -1292,7 +1292,7 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize,
 
 		i.name = b_entry_name;
 		i.value = buffer;
-		i.value_len = cpu_to_le32(size);
+		i.value_len = size;
 		error = ext4_xattr_block_find(inode, &i, bs);
 		if (error)
 			goto cleanup;