[PATCH] clk: ux500: fix a possible off-by-one in u8500_prcc_reset_base()

Hangyu Hua hbh25y at gmail.com
Tue May 17 23:25:37 PDT 2022


Off-by-one will happen when index == ARRAY_SIZE(ur->base).

Fixes: b14cbdfd467d ("clk: ux500: Add driver for the reset portions of PRCC")
Signed-off-by: Hangyu Hua <hbh25y at gmail.com>
---
 drivers/clk/ux500/reset-prcc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/clk/ux500/reset-prcc.c b/drivers/clk/ux500/reset-prcc.c
index fcd5d042806a..f7e48941fbc7 100644
--- a/drivers/clk/ux500/reset-prcc.c
+++ b/drivers/clk/ux500/reset-prcc.c
@@ -58,7 +58,7 @@ static void __iomem *u8500_prcc_reset_base(struct u8500_prcc_reset *ur,
 	prcc_num = id / PRCC_PERIPHS_PER_CLUSTER;
 	index = prcc_num_to_index(prcc_num);
 
-	if (index > ARRAY_SIZE(ur->base))
+	if (index >= ARRAY_SIZE(ur->base))
 		return NULL;
 
 	return ur->base[index];
-- 
2.25.1




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