Re: [PATCH] drm/i915: Clean-up idr table if context create fails.

[Deepak S <deepak.s@linux.intel.com>]

On Monday 30 March 2015 09:13 PM, Daniel Vetter wrote:
> On Mon, Mar 30, 2015 at 08:03:58PM +0530, deepak.s@linux.intel.com wrote:
>> From: Deepak S <deepak.s@linux.intel.com>
>>
>> Cleanup idr table if any error happens after __create_hw_context() in
>> i915_gem_create_context()
>>
>> Signed-off-by: Deepak S <deepak.s@linux.intel.com>
>> ---
>>   drivers/gpu/drm/i915/i915_gem_context.c | 2 ++
>>   1 file changed, 2 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
>> index f3e84c4..69bebe5 100644
>> --- a/drivers/gpu/drm/i915/i915_gem_context.c
>> +++ b/drivers/gpu/drm/i915/i915_gem_context.c
>> @@ -287,6 +287,8 @@ err_unpin:
>>   	if (is_global_default_ctx && ctx->legacy_hw_ctx.rcs_state)
>>   		i915_gem_object_ggtt_unpin(ctx->legacy_hw_ctx.rcs_state);
>>   err_destroy:
>> +	if (ctx->file_priv)
>> +		idr_remove(&ctx->file_priv->context_idr, ctx->user_handle);
> The common approach is to add a new err_idr: label at the op of the unwind
> code and make the call to idr_remove unconditional.
>
> Thanks, Daniel

Thanks Daniel for review.
I do not think we can have a unconditional idr remove since for global ctx
i915_gem_create_context called with file_priv=NULL?

- Thanks, Deepak

>>   	i915_gem_context_unreference(ctx);
>>   	return ERR_PTR(ret);
>>   }
>> -- 
>> 1.9.1
>>
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