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Date: Wed, 4 Jun 2014 15:13:15 +0400
From: nyushchenko@....rtsoft.ru
To: Grant Likely <grant.likely@...aro.org>,
Rob Herring <robh+dt@...nel.org>,
Benjamin Herrenschmidt <benh@...nel.crashing.org>,
Thomas Gleixner <tglx@...utronix.de>,
devicetree@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, lugovskoy@....rtsoft.ru,
Nikita Yushchenko <nyushchenko@....rtsoft.ru>
Subject: [PATCH 15/21] pinctrl: use devm_irq_of_parse_and_map() where appropriate
From: Nikita Yushchenko <nyushchenko@....rtsoft.ru>
This avoids leak of IRQ mapping on error paths, and makes it possible
to use devm_request_irq() without facing unmap-while-handler-installed
issues.
Signed-off-by: Nikita Yushchenko <nyushchenko@....rtsoft.ru>
---
drivers/pinctrl/pinctrl-bcm2835.c | 6 +++++-
drivers/pinctrl/pinctrl-exynos.c | 11 ++++++-----
drivers/pinctrl/pinctrl-exynos5440.c | 2 +-
drivers/pinctrl/pinctrl-rockchip.c | 6 +++++-
drivers/pinctrl/pinctrl-s3c24xx.c | 6 +++---
drivers/pinctrl/pinctrl-s3c64xx.c | 6 +++---
drivers/pinctrl/pinctrl-single.c | 6 +++++-
drivers/pinctrl/pinctrl-sunxi.c | 6 +++---
8 files changed, 31 insertions(+), 18 deletions(-)
diff --git a/drivers/pinctrl/pinctrl-bcm2835.c b/drivers/pinctrl/pinctrl-bcm2835.c
index 3d907de..320dcf4 100644
--- a/drivers/pinctrl/pinctrl-bcm2835.c
+++ b/drivers/pinctrl/pinctrl-bcm2835.c
@@ -1012,7 +1012,11 @@ static int bcm2835_pinctrl_probe(struct platform_device *pdev)
for_each_set_bit(offset, &events, 32)
bcm2835_gpio_wr(pc, GPEDS0 + i * 4, BIT(offset));
- pc->irq[i] = irq_of_parse_and_map(np, i);
+ pc->irq[i] = devm_irq_of_parse_and_map(dev, np, i);
+ if (pc->irq[i] <= 0) {
+ dev_err(dev, "unable to locate IRQ for bank %d\n", i);
+ return pc->irq[i] ? pc->irq[i] : -EINVAL;
+ }
pc->irq_data[i].pc = pc;
pc->irq_data[i].bank = i;
spin_lock_init(&pc->irq_lock[i]);
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 07c8130..128af30 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -549,8 +549,9 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
}
for (idx = 0; idx < bank->nr_pins; ++idx) {
- irq = irq_of_parse_and_map(bank->of_node, idx);
- if (!irq) {
+ irq = devm_irq_of_parse_and_map(dev, bank->of_node,
+ idx);
+ if (irq <= 0) {
dev_err(dev, "irq number for eint-%s-%d not found\n",
bank->name, idx);
continue;
@@ -565,10 +566,10 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
if (!muxed_banks)
return 0;
- irq = irq_of_parse_and_map(wkup_np, 0);
- if (!irq) {
+ irq = devm_irq_of_parse_and_map(dev, wkup_np, 0);
+ if (irq <= 0) {
dev_err(dev, "irq number for muxed EINTs not found\n");
- return 0;
+ return irq ? irq : -EINVAL;
}
muxed_data = devm_kzalloc(dev, sizeof(*muxed_data)
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
index 8fe2ab0..efb1e8d 100644
--- a/drivers/pinctrl/pinctrl-exynos5440.c
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -966,7 +966,7 @@ static int exynos5440_gpio_irq_init(struct platform_device *pdev,
}
for (i = 0; i < EXYNOS5440_MAX_GPIO_INT; i++) {
- irq = irq_of_parse_and_map(dev->of_node, i);
+ irq = devm_irq_of_parse_and_map(dev, dev->of_node, i);
if (irq <= 0) {
dev_err(dev, "irq parsing failed\n");
return -EINVAL;
diff --git a/drivers/pinctrl/pinctrl-rockchip.c b/drivers/pinctrl/pinctrl-rockchip.c
index 96c60d2..622a130 100644
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -1398,7 +1398,11 @@ static int rockchip_get_bank_data(struct rockchip_pin_bank *bank,
bank->bank_type = COMMON_BANK;
}
- bank->irq = irq_of_parse_and_map(bank->of_node, 0);
+ bank->irq = devm_irq_of_parse_and_map(dev, bank->of_node, 0);
+ if (bank->irq < 0) {
+ dev_err(dev, "cannot find IRQ for bank\n");
+ return bank->irq;
+ }
bank->clk = of_clk_get(bank->of_node, 0);
if (IS_ERR(bank->clk))
diff --git a/drivers/pinctrl/pinctrl-s3c24xx.c b/drivers/pinctrl/pinctrl-s3c24xx.c
index ad3eaad..93d8e2f 100644
--- a/drivers/pinctrl/pinctrl-s3c24xx.c
+++ b/drivers/pinctrl/pinctrl-s3c24xx.c
@@ -507,10 +507,10 @@ static int s3c24xx_eint_init(struct samsung_pinctrl_drv_data *d)
for (i = 0; i < NUM_EINT_IRQ; ++i) {
unsigned int irq;
- irq = irq_of_parse_and_map(eint_np, i);
- if (!irq) {
+ irq = devm_irq_of_parse_and_map(dev, eint_np, i);
+ if (irq <= 0) {
dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
- return -ENXIO;
+ return irq ? irq : -ENXIO;
}
eint_data->parents[i] = irq;
diff --git a/drivers/pinctrl/pinctrl-s3c64xx.c b/drivers/pinctrl/pinctrl-s3c64xx.c
index 89143c9..f0c9188 100644
--- a/drivers/pinctrl/pinctrl-s3c64xx.c
+++ b/drivers/pinctrl/pinctrl-s3c64xx.c
@@ -725,10 +725,10 @@ static int s3c64xx_eint_eint0_init(struct samsung_pinctrl_drv_data *d)
for (i = 0; i < NUM_EINT0_IRQ; ++i) {
unsigned int irq;
- irq = irq_of_parse_and_map(eint0_np, i);
- if (!irq) {
+ irq = devm_irq_of_parse_and_map(dev, eint0_np, i);
+ if (irq <= 0) {
dev_err(dev, "failed to get wakeup EINT IRQ %d\n", i);
- return -ENXIO;
+ return irq ? irq : -ENXIO;
}
irq_set_chained_handler(irq, s3c64xx_eint0_handlers[i]);
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 2960557..0b9b017 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -1988,7 +1988,11 @@ static int pcs_probe(struct platform_device *pdev)
if (ret < 0)
goto free;
- pcs->socdata.irq = irq_of_parse_and_map(np, 0);
+ pcs->socdata.irq = devm_irq_of_parse_and_map(&pdev->dev, np, 0);
+ if (pcs->socdata.irq < 0) {
+ ret = pcs->socdata.irq;
+ goto free;
+ }
if (pcs->socdata.irq)
pcs->flags |= PCS_FEAT_IRQ;
diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c
index f9fabe9..e0759e2 100644
--- a/drivers/pinctrl/pinctrl-sunxi.c
+++ b/drivers/pinctrl/pinctrl-sunxi.c
@@ -886,9 +886,9 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
clk_prepare_enable(clk);
- pctl->irq = irq_of_parse_and_map(node, 0);
- if (!pctl->irq) {
- ret = -EINVAL;
+ pctl->irq = devm_irq_of_parse_and_map(&pdev->dev, node, 0);
+ if (pctl->irq <= 0) {
+ ret = pctl->irq ? pctl->irq : -EINVAL;
goto gpiochip_error;
}
--
1.7.10.4
--
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