drm/amdgpu/irq: check if nbio funcs exist

We need to check if the nbios funcs exist before
checking the individual pointers.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 4ed6a4d..1f2628f 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -159,10 +159,12 @@ irqreturn_t amdgpu_irq_handler(int irq, void *arg)
         * register to check whether the interrupt is triggered or not, and properly
         * ack the interrupt if it is there
         */
-       if (adev->nbio.funcs->handle_ras_controller_intr_no_bifring)
+       if (adev->nbio.funcs &&
+           adev->nbio.funcs->handle_ras_controller_intr_no_bifring)
                adev->nbio.funcs->handle_ras_controller_intr_no_bifring(adev);
 
-       if (adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring)
+       if (adev->nbio.funcs &&
+           adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring)
                adev->nbio.funcs->handle_ras_err_event_athub_intr_no_bifring(adev);
 
        return ret;