[PATCH 5.10 277/317] drm/amdgpu: add error handle to avoid out-of-bounds

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5.10-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Bob Zhou <bob.zhou@xxxxxxx>

commit 8b2faf1a4f3b6c748c0da36cda865a226534d520 upstream.

if the sdma_v4_0_irq_id_to_seq return -EINVAL, the process should
be stop to avoid out-of-bounds read, so directly return -EINVAL.

Signed-off-by: Bob Zhou <bob.zhou@xxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
Reviewed-by: Le Ma <le.ma@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -2073,6 +2073,9 @@ static int sdma_v4_0_process_trap_irq(st
 
 	DRM_DEBUG("IH: SDMA trap\n");
 	instance = sdma_v4_0_irq_id_to_seq(entry->client_id);
+	if (instance < 0)
+		return instance;
+
 	switch (entry->ring_id) {
 	case 0:
 		amdgpu_fence_process(&adev->sdma.instance[instance].ring);






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