Am 28.09.2018 um 09:36 schrieb Huang, Ray:
-----Original Message-----
From: Christian König [mailto:ckoenig.leichtzumer...@gmail.com]
Sent: Thursday, September 27, 2018 7:26 PM
To: Huang, Ray <ray.hu...@amd.com>
Cc: amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH 01/12] drm/amdgpu: add missing error handling
Am 27.09.2018 um 12:00 schrieb Huang Rui:
On Wed, Sep 26, 2018 at 03:53:19PM +0200, Christian König wrote:
We ignored the return code here.
Signed-off-by: Christian König <christian.koe...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index f35d7a554ad5..2420ae90047e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -959,6 +959,9 @@ static int gmc_v9_0_sw_init(void *handle)
/* This interrupt is VMC page fault.*/
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC,
VMC_1_0__SRCID__VM_FAULT,
&adev->gmc.vm_fault);
+ if (r)
+ return r;
+
r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2,
UTCL2_1_0__SRCID__FAULT,
&adev->gmc.vm_fault);
We should tear down the client source that allocated by the
SOC15_IH_CLIENTID_VMC (the last one) if it (the second one) gets failed.
There is no such thing as a teardown. amdgpu_irq_add_id() registers the irq
callback for the clientid/srcid combination, but there isn't an unregister
function.
Actually, I see we will allocate the sources that register at the specific
client.
adev->irq.client[client_id].sources = kcalloc(AMDGPU_MAX_IRQ_SRC_ID,
sizeof(struct amdgpu_irq_src *), GFP_KERNEL);
While CLIENTID_UTCL2 add_id get failed, need we free the sources that allocated
by CLIENTID_VMC? Otherwise, it looks a minor memory leak here for me.
No, freeing of that is done in amdgpu_irq_fini().
Christian.
Thanks,
Ray
Christian.
Thanks,
Ray
--
2.14.1
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