From: Dan Carpenter <dan.carpenter@linaro.org>
Date: Wed, 31 Jan 2024 11:24:25 +0300
Subject: RAS/AMD/ATL: Fix array overflow in
 get_logical_coh_st_fabric_id_mi300()
Git-commit: a7b57372e1c5c848cbe9169574f07a9ee2177a1b
Patch-mainline: v6.9-rc1
References: jsc#PED-7618

Check against ARRAY_SIZE() which is the number of elements instead of
sizeof() which is the number of bytes.

Fixes: 453f0ae79732 ("RAS/AMD/ATL: Add MI300 support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/279c8b5e-6c00-467a-9071-9c67926abea4@moroto.mountain

Acked-by: Nikolay Borisov <nik.borisov@suse.com>
---
 drivers/ras/amd/atl/denormalize.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ras/amd/atl/denormalize.c b/drivers/ras/amd/atl/denormalize.c
index d5d0e1fda159..49a900e066f1 100644
--- a/drivers/ras/amd/atl/denormalize.c
+++ b/drivers/ras/amd/atl/denormalize.c
@@ -405,7 +405,7 @@ static const u16 phy_to_log_coh_st_map_mi300[] = {
 
 static u16 get_logical_coh_st_fabric_id_mi300(struct addr_ctx *ctx)
 {
-	if (ctx->inst_id >= sizeof(phy_to_log_coh_st_map_mi300)) {
+	if (ctx->inst_id >= ARRAY_SIZE(phy_to_log_coh_st_map_mi300)) {
 		atl_debug(ctx, "Instance ID out of range");
 		return ~0;
 	}