* [PATCH 1/3 v3] mfd: ipaq-micro: Fix platform_get_irq's error checking
@ 2017-11-19 4:26 ` Arvind Yadav
0 siblings, 0 replies; 6+ messages in thread
From: Arvind Yadav @ 2017-11-19 4:26 UTC (permalink / raw)
To: lee.jones, maxime.ripard, wens, linux; +Cc: linux-kernel, linux-arm-kernel
The platform_get_irq() function returns negative if an error occurs.
zero or positive number on success. platform_get_irq() error checking
for zero is not correct.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
changes in v3 :
return -EINVAL insted of irq.
drivers/mfd/ipaq-micro.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c
index cd762d0..176cf65 100644
--- a/drivers/mfd/ipaq-micro.c
+++ b/drivers/mfd/ipaq-micro.c
@@ -410,7 +410,7 @@ static int __init micro_probe(struct platform_device *pdev)
micro_reset_comm(micro);
irq = platform_get_irq(pdev, 0);
- if (!irq)
+ if (irq <= 0)
return -EINVAL;
ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr,
IRQF_SHARED, "ipaq-micro",
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 1/3 v3] mfd: ipaq-micro: Fix platform_get_irq's error checking
@ 2017-11-19 4:26 ` Arvind Yadav
0 siblings, 0 replies; 6+ messages in thread
From: Arvind Yadav @ 2017-11-19 4:26 UTC (permalink / raw)
To: linux-arm-kernel
The platform_get_irq() function returns negative if an error occurs.
zero or positive number on success. platform_get_irq() error checking
for zero is not correct.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
changes in v3 :
return -EINVAL insted of irq.
drivers/mfd/ipaq-micro.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c
index cd762d0..176cf65 100644
--- a/drivers/mfd/ipaq-micro.c
+++ b/drivers/mfd/ipaq-micro.c
@@ -410,7 +410,7 @@ static int __init micro_probe(struct platform_device *pdev)
micro_reset_comm(micro);
irq = platform_get_irq(pdev, 0);
- if (!irq)
+ if (irq <= 0)
return -EINVAL;
ret = devm_request_irq(&pdev->dev, irq, micro_serial_isr,
IRQF_SHARED, "ipaq-micro",
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 3/3 v3] mfd: sun4i-gpadc: Handle return value of platform_get_irq
2017-11-19 4:26 ` Arvind Yadav
@ 2017-11-19 4:26 ` Arvind Yadav
-1 siblings, 0 replies; 6+ messages in thread
From: Arvind Yadav @ 2017-11-19 4:26 UTC (permalink / raw)
To: lee.jones, maxime.ripard, wens, linux; +Cc: linux-kernel, linux-arm-kernel
platform_get_irq() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
changes in v3 :
return -EINVAL insted of irq.
drivers/mfd/sun4i-gpadc.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/sun4i-gpadc.c b/drivers/mfd/sun4i-gpadc.c
index 9cfc881..79a39fe 100644
--- a/drivers/mfd/sun4i-gpadc.c
+++ b/drivers/mfd/sun4i-gpadc.c
@@ -100,8 +100,8 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
struct resource *mem;
const struct of_device_id *of_id;
const struct mfd_cell *cells;
- unsigned int irq, size;
- int ret;
+ unsigned int size;
+ int ret, irq;
of_id = of_match_node(sun4i_gpadc_of_match, pdev->dev.of_node);
if (!of_id)
@@ -148,6 +148,9 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
regmap_write(dev->regmap, SUN4I_GPADC_INT_FIFOC, 0);
irq = platform_get_irq(pdev, 0);
+ if (irq <= 0)
+ return -EINVAL;
+
ret = devm_regmap_add_irq_chip(&pdev->dev, dev->regmap, irq,
IRQF_ONESHOT, 0,
&sun4i_gpadc_regmap_irq_chip,
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 3/3 v3] mfd: sun4i-gpadc: Handle return value of platform_get_irq
@ 2017-11-19 4:26 ` Arvind Yadav
0 siblings, 0 replies; 6+ messages in thread
From: Arvind Yadav @ 2017-11-19 4:26 UTC (permalink / raw)
To: linux-arm-kernel
platform_get_irq() can fail here and we must check its return value.
Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
---
changes in v2 :
Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
changes in v3 :
return -EINVAL insted of irq.
drivers/mfd/sun4i-gpadc.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/mfd/sun4i-gpadc.c b/drivers/mfd/sun4i-gpadc.c
index 9cfc881..79a39fe 100644
--- a/drivers/mfd/sun4i-gpadc.c
+++ b/drivers/mfd/sun4i-gpadc.c
@@ -100,8 +100,8 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
struct resource *mem;
const struct of_device_id *of_id;
const struct mfd_cell *cells;
- unsigned int irq, size;
- int ret;
+ unsigned int size;
+ int ret, irq;
of_id = of_match_node(sun4i_gpadc_of_match, pdev->dev.of_node);
if (!of_id)
@@ -148,6 +148,9 @@ static int sun4i_gpadc_probe(struct platform_device *pdev)
regmap_write(dev->regmap, SUN4I_GPADC_INT_FIFOC, 0);
irq = platform_get_irq(pdev, 0);
+ if (irq <= 0)
+ return -EINVAL;
+
ret = devm_regmap_add_irq_chip(&pdev->dev, dev->regmap, irq,
IRQF_ONESHOT, 0,
&sun4i_gpadc_regmap_irq_chip,
--
2.7.4
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 1/3 v3] mfd: ipaq-micro: Fix platform_get_irq's error checking
2017-11-19 4:26 ` Arvind Yadav
@ 2020-08-27 7:36 ` Krzysztof Kozlowski
-1 siblings, 0 replies; 6+ messages in thread
From: Krzysztof Kozlowski @ 2020-08-27 7:36 UTC (permalink / raw)
To: Arvind Yadav
Cc: lee.jones, maxime.ripard, wens, linux, linux-kernel, linux-arm-kernel
On Sun, 19 Nov 2017 at 05:28, Arvind Yadav <arvind.yadav.cs@gmail.com> wrote:
>
> The platform_get_irq() function returns negative if an error occurs.
> zero or positive number on success. platform_get_irq() error checking
> for zero is not correct.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> ---
> changes in v2 :
> Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
> changes in v3 :
> return -EINVAL insted of irq.
>
> drivers/mfd/ipaq-micro.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Hi Arvind,
This was never applied. Can you rebase and resend the entire series?
Or maybe there was a reason to drop it?
Best Regards,
Krzysztof
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/3 v3] mfd: ipaq-micro: Fix platform_get_irq's error checking
@ 2020-08-27 7:36 ` Krzysztof Kozlowski
0 siblings, 0 replies; 6+ messages in thread
From: Krzysztof Kozlowski @ 2020-08-27 7:36 UTC (permalink / raw)
To: Arvind Yadav
Cc: linux-kernel, linux, wens, maxime.ripard, lee.jones, linux-arm-kernel
On Sun, 19 Nov 2017 at 05:28, Arvind Yadav <arvind.yadav.cs@gmail.com> wrote:
>
> The platform_get_irq() function returns negative if an error occurs.
> zero or positive number on success. platform_get_irq() error checking
> for zero is not correct.
>
> Signed-off-by: Arvind Yadav <arvind.yadav.cs@gmail.com>
> ---
> changes in v2 :
> Add failure case '<= 0' instead of '< 0'. If IRQ0 is not valid.
> changes in v3 :
> return -EINVAL insted of irq.
>
> drivers/mfd/ipaq-micro.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
Hi Arvind,
This was never applied. Can you rebase and resend the entire series?
Or maybe there was a reason to drop it?
Best Regards,
Krzysztof
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linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2020-08-27 7:38 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-19 4:26 [PATCH 1/3 v3] mfd: ipaq-micro: Fix platform_get_irq's error checking Arvind Yadav
2017-11-19 4:26 ` Arvind Yadav
2017-11-19 4:26 ` [PATCH 3/3 v3] mfd: sun4i-gpadc: Handle return value of platform_get_irq Arvind Yadav
2017-11-19 4:26 ` Arvind Yadav
2020-08-27 7:36 ` [PATCH 1/3 v3] mfd: ipaq-micro: Fix platform_get_irq's error checking Krzysztof Kozlowski
2020-08-27 7:36 ` Krzysztof Kozlowski
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