[PATCH v3 1/6] pinctrl: renesas: rzg2l: Use raw_spinlock_irqsave() on power source update

[Claudiu Beznea]

From: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>

The rest of the driver uses
raw_spin_lock_irqsave()/raw_spin_unlock_irqrestore() for locking. To
avoid concurrency issues or deadlocks, use raw_spinlock_irqsave() via
the scoped_guard() helper for power source updates as well.

Fixes: bbe2277dedbe ("pinctrl: renesas: rzg2l: Add support for selecting power source for {WDT,AWO,ISO}")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@xxxxxxxxxxxxxx>
---

Changes in v3:
- none, this patch is new

 drivers/pinctrl/renesas/pinctrl-rzg2l.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/pinctrl/renesas/pinctrl-rzg2l.c b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
index 83c61dcb24b1..be52d47d77ae 100644
--- a/drivers/pinctrl/renesas/pinctrl-rzg2l.c
+++ b/drivers/pinctrl/renesas/pinctrl-rzg2l.c
@@ -1137,7 +1137,7 @@ static int rzg2l_set_power_source(struct rzg2l_pinctrl *pctrl, u32 pin, u32 caps
 		return pwr_reg;
 
 	if (pwr_reg == OTHER_POC) {
-		scoped_guard(raw_spinlock, &pctrl->lock) {
+		scoped_guard(raw_spinlock_irqsave, &pctrl->lock) {
 			val = readb(pctrl->base + pwr_reg);
 			if (poc_val)
 				val |= mask;
-- 
2.43.0