Thread (3 messages) flat view 3 messages, 2 authors, 2021-07-08

Re: [PATCH] clk: at91: fix count of periph clocks passed to pmc_data_allocate

From: Alexandre Belloni <alexandre.belloni@bootlin.com>
Date: 2021-06-09 08:31:06
Also in: linux-clk, lkml

hi,

Subject should have been:
clk: at91: sama5d2: fix count of periph clocks passed to pmc_data_allocate



On 09/06/2021 10:01:44+0200, Clément Léger wrote:
When allocating clk_hw structure, only the periph32 clocks are considered.
Since sama5d2_periphck are also added to the phws there is currently an
out of bound write. Fix this by adding the count of periphck to periph32ck.

Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Fixes: a2038077de9a ("clk: at91: add sama5d2 PMC driver")
quoted hunk ↗ jump to hunk
---
 drivers/clk/at91/sama5d2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/clk/at91/sama5d2.c b/drivers/clk/at91/sama5d2.c
index 3d1f78176c3e..663b73a032ee 100644
--- a/drivers/clk/at91/sama5d2.c
+++ b/drivers/clk/at91/sama5d2.c
@@ -170,7 +170,7 @@ static void __init sama5d2_pmc_setup(struct device_node *np)
 
 	sama5d2_pmc = pmc_data_allocate(PMC_AUDIOPLLCK + 1,
 					nck(sama5d2_systemck),
-					nck(sama5d2_periph32ck),
+					nck(sama5d2_periphck) + nck(sama5d2_periph32ck),
 					nck(sama5d2_gck), 3);
 	if (!sama5d2_pmc)
 		return;
-- 
2.32.0
-- 
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

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