[patch] drm/radeon: add a check for allocation failure

Christian König christian.koenig at amd.com
Thu Aug 7 08:33:55 PDT 2014


I'm 100% sure that I've fixed that as well with a follow up patch. Looks 
like that one didn't made it into 3.17

Christian.

Am 07.08.2014 um 17:31 schrieb Alex Deucher:
> On Thu, Aug 7, 2014 at 11:27 AM, Dan Carpenter <dan.carpenter at oracle.com> wrote:
>> We can easily return -ENOMEM here if kzalloc() fails.
>>
>> Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>
>>
>> diff --git a/drivers/gpu/drm/radeon/radeon_vm.c b/drivers/gpu/drm/radeon/radeon_vm.c
>> index ccae4d9..d15d987 100644
>> --- a/drivers/gpu/drm/radeon/radeon_vm.c
>> +++ b/drivers/gpu/drm/radeon/radeon_vm.c
>> @@ -483,6 +483,8 @@ int radeon_vm_bo_set_addr(struct radeon_device *rdev,
>>                          /* add a clone of the bo_va to clear the old address */
>>                          struct radeon_bo_va *tmp;
>>                          tmp = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
>> +                       if (!tmp)
>> +                               return -ENOMEM;
> We need to drop the lock here too.  I'll apply and fix it up.  Thanks!
>
> Alex
>
>>                          tmp->it.start = bo_va->it.start;
>>                          tmp->it.last = bo_va->it.last;
>>                          tmp->vm = vm;
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