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gpio: mxc: Unlock on error path in mxc_flip_edge()

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We recently added locking to this function but one error path was
over looked.  Drop the lock before returning.

Fixes: e546427762 ("gpio: mxc: Protect GPIO irqchip RMW with bgpio spinlock")
Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
This commit is contained in:
Dan Carpenter 2023-01-24 18:20:26 +03:00 committed by Bartosz Golaszewski
parent d63f11c02b
commit 3787035861
1 changed files with 2 additions and 1 deletions
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3
drivers/gpio/gpio-mxc.c
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@ -249,10 +249,11 @@ static void mxc_flip_edge(struct mxc_gpio_port *port, u32 gpio)
} else {
pr_err("mxc: invalid configuration for GPIO %d: %x\n",
gpio, edge);
return;
goto unlock;
}
writel(val | (edge << (bit << 1)), reg);
unlock:
raw_spin_unlock_irqrestore(&port->gc.bgpio_lock, flags);
}