From: Jia He <justin.he@arm.com>
To: Hoan Tran <hoan@os.amperecomputing.com>,
Serge Semin <fancer.lancer@gmail.com>,
Linus Walleij <linus.walleij@linaro.org>,
Bartosz Golaszewski <bgolaszewski@baylibre.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>,
linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org,
Jia He <justin.he@arm.com>
Subject: [PATCH] gpio: dwapb: Fix missing conversion to GPIO-lib-based IRQ-chip
Date: Fri, 16 Oct 2020 23:35:44 +0800 [thread overview]
Message-ID: <20201016153544.162611-1-justin.he@arm.com> (raw)
Commit 0ea683931adb ("gpio: dwapb: Convert driver to using the
GPIO-lib-based IRQ-chip") missed the case in dwapb_irq_set_wake().
Without this fix, probing the dwapb gpio driver will hit a error:
"address between user and kernel address ranges" on a Ampere armv8a
server and cause a panic.
Fixes: 0ea683931adb ("gpio: dwapb: Convert driver to using the
GPIO-lib-based IRQ-chip")
Signed-off-by: Jia He <justin.he@arm.com>
---
drivers/gpio/gpio-dwapb.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index a5b326754124..2a9046c0fb16 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -343,8 +343,8 @@ static int dwapb_irq_set_type(struct irq_data *d, u32 type)
#ifdef CONFIG_PM_SLEEP
static int dwapb_irq_set_wake(struct irq_data *d, unsigned int enable)
{
- struct irq_chip_generic *igc = irq_data_get_irq_chip_data(d);
- struct dwapb_gpio *gpio = igc->private;
+ struct gpio_chip *gc = irq_data_get_irq_chip_data(d);
+ struct dwapb_gpio *gpio = to_dwapb_gpio(gc);
struct dwapb_context *ctx = gpio->ports[0].ctx;
irq_hw_number_t bit = irqd_to_hwirq(d);
--
2.17.1
next reply other threads:[~2020-10-16 15:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-16 15:35 Jia He [this message]
2020-10-16 15:43 ` [PATCH] gpio: dwapb: Fix missing conversion to GPIO-lib-based IRQ-chip Andy Shevchenko
2020-10-16 16:39 ` Serge Semin
2020-10-26 14:50 ` Bartosz Golaszewski
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