[PATCH] drm/amdgpu: Fix NULL pointer when ta is missing

[Pan, Xinhui]

Ta is optional, so check if ta firmware is loaded or not.

Signed-off-by: xinhui pan <xinhui.pan at amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 7e3e1d588d74..0bd9df9fd289 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -656,6 +656,9 @@ static int psp_ras_initialize(struct psp_context *psp)
{
             int ret;
+            if (!psp->adev->psp.ta_fw)
+                           return -ENOENT;
+
             if (!psp->ras.ras_initialized) {
                            ret = psp_ras_init_shared_buf(psp);
                            if (ret)
--
2.17.1

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