[Ocfs2-devel] [PATCH] fix a compiling warning

[Ocfs2-devel] [PATCH] fix a compiling warning

[piaojun]

Hi Larry,

'had_lock' will be initialized by ocfs2_inode_lock_tracker(), and the
'bail' branch above won't use it either as 'inode_locked' is still zero.

thanks,
Jun

On 2018/5/6 17:49, Larry Chen wrote:
> The variable had_lock might be used uninitialized.
> 
> Signed-off-by: Larry Chen <lchen@suse.com>
> ---
>  fs/ocfs2/file.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
> index 6ee94bc23f5b..50f17f56db36 100644
> --- a/fs/ocfs2/file.c
> +++ b/fs/ocfs2/file.c
> @@ -1133,7 +1133,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
>  	handle_t *handle = NULL;
>  	struct dquot *transfer_to[MAXQUOTAS] = { };
>  	int qtype;
> -	int had_lock;
> +	int had_lock = 0;
>  	struct ocfs2_lock_holder oh;
>  
>  	trace_ocfs2_setattr(inode, dentry,
> 

[Ocfs2-devel] [PATCH] fix a compiling warning

[Larry Chen]

Hi Jun

Yeah,I know your logic is right.
It's just a compile warning that made me feel uncomfortable.

:)



On 05/07/2018 08:52 AM, piaojun wrote:
> Hi Larry,
>
> 'had_lock' will be initialized by ocfs2_inode_lock_tracker(), and the
> 'bail' branch above won't use it either as 'inode_locked' is still zero.
>
> thanks,
> Jun
>
> On 2018/5/6 17:49, Larry Chen wrote:
>> The variable had_lock might be used uninitialized.
>>
>> Signed-off-by: Larry Chen <lchen@suse.com>
>> ---
>>   fs/ocfs2/file.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
>> index 6ee94bc23f5b..50f17f56db36 100644
>> --- a/fs/ocfs2/file.c
>> +++ b/fs/ocfs2/file.c
>> @@ -1133,7 +1133,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
>>   	handle_t *handle = NULL;
>>   	struct dquot *transfer_to[MAXQUOTAS] = { };
>>   	int qtype;
>> -	int had_lock;
>> +	int had_lock = 0;
>>   	struct ocfs2_lock_holder oh;
>>   
>>   	trace_ocfs2_setattr(inode, dentry,
>>

[Ocfs2-devel] [PATCH] fix a compiling warning

[Changwei Ge]

Hi Larry,

It would be better for you to paste the compilation warning and gcc version.

So we can justify if it is deserved to be fixed.


Thanks,

Changwei


On 2018/5/7 11:06 AM, Larry Chen wrote:
> Hi Jun
>
> Yeah,I know your logic is right.
> It's just a compile warning that made me feel uncomfortable.
>
> :)
>
>
>
> On 05/07/2018 08:52 AM, piaojun wrote:
>> Hi Larry,
>>
>> 'had_lock' will be initialized by ocfs2_inode_lock_tracker(), and the
>> 'bail' branch above won't use it either as 'inode_locked' is still zero.
>>
>> thanks,
>> Jun
>>
>> On 2018/5/6 17:49, Larry Chen wrote:
>>> The variable had_lock might be used uninitialized.
>>>
>>> Signed-off-by: Larry Chen <lchen@suse.com>
>>> ---
>>>    fs/ocfs2/file.c | 2 +-
>>>    1 file changed, 1 insertion(+), 1 deletion(-)
>>>
>>> diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
>>> index 6ee94bc23f5b..50f17f56db36 100644
>>> --- a/fs/ocfs2/file.c
>>> +++ b/fs/ocfs2/file.c
>>> @@ -1133,7 +1133,7 @@ int ocfs2_setattr(struct dentry *dentry, struct iattr *attr)
>>>    	handle_t *handle = NULL;
>>>    	struct dquot *transfer_to[MAXQUOTAS] = { };
>>>    	int qtype;
>>> -	int had_lock;
>>> +	int had_lock = 0;
>>>    	struct ocfs2_lock_holder oh;
>>>    
>>>    	trace_ocfs2_setattr(inode, dentry,
>>>
>
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