[libvirt] [PATCH v2] Fixed NULL pointer check

Wen Congyang wency at cn.fujitsu.com
Mon Mar 19 10:01:36 UTC 2012


At 03/19/2012 05:38 PM, Michal Privoznik Wrote:
> On 19.03.2012 08:55, Martin Kletzander wrote:
>> This patch fixes a NULL pointer check that was causing SegFault on
>> some specific configurations.
>> ---
>>  src/util/conf.c |    5 ++++-
>>  1 files changed, 4 insertions(+), 1 deletions(-)
>>
>> diff --git a/src/util/conf.c b/src/util/conf.c
>> index 8ad60e0..3370337 100644
>> --- a/src/util/conf.c
>> +++ b/src/util/conf.c
>> @@ -1,7 +1,7 @@
>>  /**
>>   * conf.c: parser for a subset of the Python encoded Xen configuration files
>>   *
>> - * Copyright (C) 2006-2011 Red Hat, Inc.
>> + * Copyright (C) 2006-2012 Red Hat, Inc.
>>   *
>>   * See COPYING.LIB for the License of this software
>>   *
>> @@ -836,6 +836,9 @@ virConfGetValue(virConfPtr conf, const char *setting)
>>  {
>>      virConfEntryPtr cur;
>>
>> +    if (conf == NULL)
>> +        return NULL;
>> +
>>      cur = conf->entries;
>>      while (cur != NULL) {
>>          if ((cur->name != NULL) &&
> 
> Looking good, but I think we should revert 59d0c9801c1ab then.

I agree with reverting this commit. It does not fix all space.

> In addition - maybe we can set ATTRIBUTE_RETURN_CHECK to this function.

Agree with it.

Thanks
Wen Congyang

> 
> Michal
> 
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