On 2012年08月16日 16:55, Jie Liu wrote:
> On 08/16/12 16:03, Arne Jansen wrote:
>> On 16.08.2012 09:57, Wang Sheng-Hui wrote:
>>> For malloc may fail, we should check it before assign
>>> values to the fields of struct btrfs_trans_handle *h.
>>>
>>> Signed-off-by: Wang Sheng-Hui <shhuiw@xxxxxxxxx>
>>> ---
>>> transaction.h | 5 +++++
>>> 1 files changed, 5 insertions(+), 0 deletions(-)
>>>
>>> diff --git a/transaction.h b/transaction.h
>>> index a1070e0..d4e42a1 100644
>>> --- a/transaction.h
>>> +++ b/transaction.h
>>> @@ -32,7 +32,12 @@ static inline struct btrfs_trans_handle *
>>> btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
>>> {
>>> struct btrfs_fs_info *fs_info = root->fs_info;
>>> +
> Why move down a blank line?
>>> struct btrfs_trans_handle *h = malloc(sizeof(*h));
> Skip a line here would looks a bit neat.
>>> + if (!h) {
>>> + BUG();
>>> + return NULL;
>>> + }
>> a more simple way would be to write
>> BUG_ON(!h);
>>
>>>
>>> BUG_ON(root->commit_root);
>>> BUG_ON(fs_info->running_transaction);
>> --
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>
Patch regenerated. Please check it. Thanks,
>From 5a265e252e87a8a456a6615affd57dfb49900c64 Mon Sep 17 00:00:00 2001
From: Wang Sheng-Hui <shhuiw@xxxxxxxxx>
Date: Thu, 16 Aug 2012 20:14:32 +0800
Subject: [PATCH] btrfs-progs: add malloc check in transaction.h/btrfs_start_transaction
For malloc may fail, we should check it before assign
values to the struct btrfs_trans_handle *h.
Signed-off-by: Wang Sheng-Hui <shhuiw@xxxxxxxxx>
---
transaction.h | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/transaction.h b/transaction.h
index a1070e0..e8610b1 100644
--- a/transaction.h
+++ b/transaction.h
@@ -34,6 +34,7 @@ btrfs_start_transaction(struct btrfs_root *root, int num_blocks)
struct btrfs_fs_info *fs_info = root->fs_info;
struct btrfs_trans_handle *h = malloc(sizeof(*h));
+ BUG_ON(!h);
BUG_ON(root->commit_root);
BUG_ON(fs_info->running_transaction);
fs_info->running_transaction = h;
--
1.7.1
--
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