[PATCH] drm/amdgpu/irq: check if nbio funcs exist

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

Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index 3e49aa1465e2..0782f9153b60 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -156,10 +156,12 @@ 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;
-- 
2.20.1

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