[PATCH] drm/amd/powerplay: suppress KASAN out of bounds warning in vega10_populate_all_memory_levels

[Evan Quan]

Change-Id: I437e3e08cd48943de277c5d3eefdbaf21fd6a489
Signed-off-by: Evan Quan <evan.quan at amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 7079e61..0364a96 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -1807,6 +1807,10 @@ static int vega10_populate_all_memory_levels(struct pp_hwmgr *hwmgr)
 	mem_channels = (cgs_read_register(hwmgr->device, reg) &
 			DF_CS_AON0_DramBaseAddress0__IntLvNumChan_MASK) >>
 			DF_CS_AON0_DramBaseAddress0__IntLvNumChan__SHIFT;
+	PP_ASSERT_WITH_CODE(mem_channels < ARRAY_SIZE(channel_number),
+			"Mem Channel Index Exceeded maximum!",
+			return -1);
+
 	pp_table->NumMemoryChannels = cpu_to_le16(mem_channels);
 	pp_table->MemoryChannelWidth =
 			cpu_to_le16(HBM_MEMORY_CHANNEL_WIDTH *
-- 
2.7.4