ocfs2: Don't check for NULL before brelse()

This is pointless as brelse() already does the check.

Signed-off-by: Mark Fasheh

fs/ocfs2/alloc.c

@@ -719,7 +719,6 @@ int ocfs2_num_free_extents(struct ocfs2_super *osb,
 
 	retval = le16_to_cpu(el->l_count) - le16_to_cpu(el->l_next_free_rec);
 bail:
-	if (eb_bh)
 	brelse(eb_bh);
 
 	mlog_exit(retval);
@@ -806,7 +805,6 @@ static int ocfs2_create_new_meta_bhs(struct ocfs2_super *osb,
 bail:
 	if (status < 0) {
 		for(i = 0; i < wanted; i++) {
-			if (bhs[i])
 			brelse(bhs[i]);
 			bhs[i] = NULL;
 		}
@@ -1017,7 +1015,6 @@ static int ocfs2_add_branch(struct ocfs2_super *osb,
 bail:
 	if (new_eb_bhs) {
 		for (i = 0; i < new_blocks; i++)
-			if (new_eb_bhs[i])
 			brelse(new_eb_bhs[i]);
 		kfree(new_eb_bhs);
 	}
@@ -1116,7 +1113,6 @@ static int ocfs2_shift_tree_depth(struct ocfs2_super *osb,
 	new_eb_bh = NULL;
 	status = 0;
 bail:
-	if (new_eb_bh)
 	brelse(new_eb_bh);
 
 	mlog_exit(status);
@@ -1177,10 +1173,8 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
 			goto bail;
 		}
 
-		if (bh) {
 		brelse(bh);
 		bh = NULL;
-		}
 
 		status = ocfs2_read_block(osb, blkno, &bh, OCFS2_BH_CACHED,
 					  inode);
@@ -1199,7 +1193,6 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
 
 		if (le16_to_cpu(el->l_next_free_rec) <
 		    le16_to_cpu(el->l_count)) {
-			if (lowest_bh)
 			brelse(lowest_bh);
 			lowest_bh = bh;
 			get_bh(lowest_bh);
@@ -1214,7 +1207,6 @@ static int ocfs2_find_branch_target(struct ocfs2_super *osb,
 
 	*target_bh = lowest_bh;
 bail:
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(status);
@@ -4471,7 +4463,6 @@ int ocfs2_insert_extent(struct ocfs2_super *osb,
 		ocfs2_extent_map_insert_rec(inode, &rec);
 
 bail:
-	if (last_eb_bh)
 	brelse(last_eb_bh);
 
 	mlog_exit(status);
@@ -5677,7 +5668,6 @@ int ocfs2_begin_truncate_log_recovery(struct ocfs2_super *osb,
 bail:
 	if (tl_inode)
 		iput(tl_inode);
-	if (tl_bh)
 	brelse(tl_bh);
 
 	if (status < 0 && (*tl_copy)) {
@@ -7115,7 +7105,6 @@ static void ocfs2_free_truncate_context(struct ocfs2_truncate_context *tc)
 		mlog(ML_NOTICE,
 		     "Truncate completion has non-empty dealloc context\n");
 
-	if (tc->tc_last_eb_bh)
 	brelse(tc->tc_last_eb_bh);
 
 	kfree(tc);

fs/ocfs2/aops.c

@@ -128,7 +128,6 @@ static int ocfs2_symlink_get_block(struct inode *inode, sector_t iblock,
 	err = 0;
 
 bail:
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(err);

fs/ocfs2/dir.c

@@ -716,7 +716,6 @@ static int ocfs2_dir_foreach_blk_el(struct inode *inode,
 			for (i = ra_sectors >> (sb->s_blocksize_bits - 9);
 			     i > 0; i--) {
 				tmp = ocfs2_bread(inode, ++blk, &err, 1);
-				if (tmp)
 				brelse(tmp);
 			}
 			last_ra_blk = blk;
@@ -899,11 +898,9 @@ int ocfs2_find_files_on_disk(const char *name,
 leave:
 	if (status < 0) {
 		*dirent = NULL;
-		if (*dirent_bh) {
 		brelse(*dirent_bh);
 		*dirent_bh = NULL;
 	}
-	}
 
 	mlog_exit(status);
 	return status;
@@ -951,7 +948,6 @@ int ocfs2_check_dir_for_entry(struct inode *dir,
 
 	ret = 0;
 bail:
-	if (dirent_bh)
 	brelse(dirent_bh);
 
 	mlog_exit(ret);
@@ -1127,7 +1123,6 @@ static int ocfs2_fill_new_dir_el(struct ocfs2_super *osb,
 
 	status = 0;
 bail:
-	if (new_bh)
 	brelse(new_bh);
 
 	mlog_exit(status);
@@ -1574,7 +1569,6 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb,
 	if (meta_ac)
 		ocfs2_free_alloc_context(meta_ac);
 
-	if (new_bh)
 	brelse(new_bh);
 
 	mlog_exit(status);
@@ -1702,7 +1696,6 @@ static int ocfs2_find_dir_space_el(struct inode *dir, const char *name,
 
 	status = 0;
 bail:
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(status);
@@ -1762,7 +1755,6 @@ int ocfs2_prepare_dir_for_insert(struct ocfs2_super *osb,
 	*ret_de_bh = bh;
 	bh = NULL;
 out:
-	if (bh)
 	brelse(bh);
 	return ret;
 }

fs/ocfs2/file.c

@@ -671,10 +671,8 @@ static int __ocfs2_extend_allocation(struct inode *inode, u32 logical_start,
 		restart_func = 0;
 		goto restart_all;
 	}
-	if (bh) {
 	brelse(bh);
 	bh = NULL;
-	}
 
 	mlog_exit(status);
 	return status;
@@ -991,7 +989,6 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
 	if (size_change)
 		ocfs2_rw_unlock(inode, 1);
 bail:
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(status);

fs/ocfs2/inode.c

@@ -1174,10 +1174,9 @@ struct buffer_head *ocfs2_bread(struct inode *inode,
 	return bh;
 
 fail:
-	if (bh) {
 	brelse(bh);
 	bh = NULL;
-	}
+
 	*err = -EIO;
 	return NULL;
 }

fs/ocfs2/ioctl.c

@@ -102,7 +102,6 @@ static int ocfs2_set_inode_attr(struct inode *inode, unsigned flags,
 bail:
 	mutex_unlock(&inode->i_mutex);
 
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(status);

fs/ocfs2/journal.c

@@ -554,7 +554,6 @@ int ocfs2_journal_init(struct ocfs2_journal *journal, int *dirty)
 	if (status < 0) {
 		if (inode_lock)
 			ocfs2_inode_unlock(inode, 1);
-		if (bh != NULL)
 		brelse(bh);
 		if (inode) {
 			OCFS2_I(inode)->ip_open_count--;
@@ -869,7 +868,6 @@ static int ocfs2_force_read_journal(struct inode *inode)
 
 bail:
 	for(i = 0; i < CONCURRENT_JOURNAL_FILL; i++)
-		if (bhs[i])
 		brelse(bhs[i]);
 	mlog_exit(status);
 	return status;
@@ -1286,7 +1284,6 @@ static int ocfs2_replay_journal(struct ocfs2_super *osb,
 	if (inode)
 		iput(inode);
 
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(status);

fs/ocfs2/localalloc.c

@@ -294,7 +294,6 @@ int ocfs2_load_local_alloc(struct ocfs2_super *osb)
 
 bail:
 	if (status < 0)
-		if (alloc_bh)
 		brelse(alloc_bh);
 	if (inode)
 		iput(inode);
@@ -411,7 +410,6 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb)
 	ocfs2_commit_trans(osb, handle);
 
 out_unlock:
-	if (main_bm_bh)
 	brelse(main_bm_bh);
 
 	ocfs2_inode_unlock(main_bm_inode, 1);
@@ -488,7 +486,6 @@ int ocfs2_begin_local_alloc_recovery(struct ocfs2_super *osb,
 		*alloc_copy = NULL;
 	}
 
-	if (alloc_bh)
 	brelse(alloc_bh);
 
 	if (inode) {
@@ -557,7 +554,6 @@ int ocfs2_complete_local_alloc_recovery(struct ocfs2_super *osb,
 out_mutex:
 	mutex_unlock(&main_bm_inode->i_mutex);
 
-	if (main_bm_bh)
 	brelse(main_bm_bh);
 
 	iput(main_bm_inode);
@@ -1281,7 +1277,6 @@ static int ocfs2_local_alloc_slide_window(struct ocfs2_super *osb,
 	if (handle)
 		ocfs2_commit_trans(osb, handle);
 
-	if (main_bm_bh)
 	brelse(main_bm_bh);
 
 	if (main_bm_inode)

fs/ocfs2/namei.c

@@ -328,13 +328,8 @@ static int ocfs2_mknod(struct inode *dir,
 	if (status == -ENOSPC)
 		mlog(0, "Disk is full\n");
 
-	if (new_fe_bh)
 	brelse(new_fe_bh);
-
-	if (de_bh)
 	brelse(de_bh);
-
-	if (parent_fe_bh)
 	brelse(parent_fe_bh);
 
 	if ((status < 0) && inode)
@@ -648,11 +643,8 @@ static int ocfs2_link(struct dentry *old_dentry,
 out:
 	ocfs2_inode_unlock(dir, 1);
 
-	if (de_bh)
 	brelse(de_bh);
-	if (fe_bh)
 	brelse(fe_bh);
-	if (parent_fe_bh)
 	brelse(parent_fe_bh);
 
 	mlog_exit(err);
@@ -852,16 +844,9 @@ static int ocfs2_unlink(struct inode *dir,
 		iput(orphan_dir);
 	}
 
-	if (fe_bh)
 	brelse(fe_bh);
-
-	if (dirent_bh)
 	brelse(dirent_bh);
-
-	if (parent_node_bh)
 	brelse(parent_node_bh);
-
-	if (orphan_entry_bh)
 	brelse(orphan_entry_bh);
 
 	mlog_exit(status);
@@ -1373,23 +1358,14 @@ static int ocfs2_rename(struct inode *old_dir,
 
 	if (new_inode)
 		iput(new_inode);
-	if (newfe_bh)
 	brelse(newfe_bh);
-	if (old_inode_bh)
 	brelse(old_inode_bh);
-	if (old_dir_bh)
 	brelse(old_dir_bh);
-	if (new_dir_bh)
 	brelse(new_dir_bh);
-	if (new_de_bh)
 	brelse(new_de_bh);
-	if (old_de_bh)
 	brelse(old_de_bh);
-	if (old_inode_de_bh)
 	brelse(old_inode_de_bh);
-	if (orphan_entry_bh)
 	brelse(orphan_entry_bh);
-	if (insert_entry_bh)
 	brelse(insert_entry_bh);
 
 	mlog_exit(status);
@@ -1493,7 +1469,6 @@ static int ocfs2_create_symlink_data(struct ocfs2_super *osb,
 
 	if (bhs) {
 		for(i = 0; i < blocks; i++)
-			if (bhs[i])
 			brelse(bhs[i]);
 		kfree(bhs);
 	}
@@ -1660,11 +1635,8 @@ static int ocfs2_symlink(struct inode *dir,
 
 	ocfs2_inode_unlock(dir, 1);
 
-	if (new_fe_bh)
 	brelse(new_fe_bh);
-	if (parent_fe_bh)
 	brelse(parent_fe_bh);
-	if (de_bh)
 	brelse(de_bh);
 	if (inode_ac)
 		ocfs2_free_alloc_context(inode_ac);
@@ -1760,7 +1732,6 @@ static int ocfs2_prepare_orphan_dir(struct ocfs2_super *osb,
 		iput(orphan_dir_inode);
 	}
 
-	if (orphan_dir_bh)
 	brelse(orphan_dir_bh);
 
 	mlog_exit(status);
@@ -1830,7 +1801,6 @@ static int ocfs2_orphan_add(struct ocfs2_super *osb,
 	     (unsigned long long)OCFS2_I(inode)->ip_blkno, osb->slot_num);
 
 leave:
-	if (orphan_dir_bh)
 	brelse(orphan_dir_bh);
 
 	mlog_exit(status);
@@ -1899,7 +1869,6 @@ int ocfs2_orphan_del(struct ocfs2_super *osb,
 	}
 
 leave:
-	if (target_de_bh)
 	brelse(target_de_bh);
 
 	mlog_exit(status);

fs/ocfs2/suballoc.c

@@ -130,10 +130,8 @@ void ocfs2_free_ac_resource(struct ocfs2_alloc_context *ac)
 		iput(inode);
 		ac->ac_inode = NULL;
 	}
-	if (ac->ac_bh) {
 	brelse(ac->ac_bh);
 	ac->ac_bh = NULL;
-	}
 }
 
 void ocfs2_free_alloc_context(struct ocfs2_alloc_context *ac)
@@ -401,7 +399,6 @@ static int ocfs2_block_group_alloc(struct ocfs2_super *osb,
 	if (ac)
 		ocfs2_free_alloc_context(ac);
 
-	if (bg_bh)
 	brelse(bg_bh);
 
 	mlog_exit(status);
@@ -494,7 +491,6 @@ static int ocfs2_reserve_suballoc_bits(struct ocfs2_super *osb,
 	get_bh(bh);
 	ac->ac_bh = bh;
 bail:
-	if (bh)
 	brelse(bh);
 
 	mlog_exit(status);
@@ -1269,10 +1265,10 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 					     &tmp_bits)) == -ENOSPC) {
 		if (!bg->bg_next_group)
 			break;
-		if (prev_group_bh) {
+
 		brelse(prev_group_bh);
 		prev_group_bh = NULL;
-		}
+
 		next_group = le64_to_cpu(bg->bg_next_group);
 		prev_group_bh = group_bh;
 		group_bh = NULL;
@@ -1367,9 +1363,7 @@ static int ocfs2_search_chain(struct ocfs2_alloc_context *ac,
 	*bg_blkno = le64_to_cpu(bg->bg_blkno);
 	*bits_left = le16_to_cpu(bg->bg_free_bits_count);
 bail:
-	if (group_bh)
 	brelse(group_bh);
-	if (prev_group_bh)
 	brelse(prev_group_bh);
 
 	mlog_exit(status);
@@ -1844,7 +1838,6 @@ int ocfs2_free_suballoc_bits(handle_t *handle,
 	}
 
 bail:
-	if (group_bh)
 	brelse(group_bh);
 
 	mlog_exit(status);

fs/ocfs2/super.c

@@ -762,7 +762,6 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent)
 	return status;
 
 read_super_error:
-	if (bh != NULL)
 	brelse(bh);
 
 	if (inode)

fs/ocfs2/symlink.c

@@ -158,7 +158,6 @@ static void *ocfs2_follow_link(struct dentry *dentry,
 		kunmap(page);
 		page_cache_release(page);
 	}
-	if (bh)
 	brelse(bh);
 
 	return ERR_PTR(status);