* [PATCH] iommu: rockchip: Fix missing unwind goto in rk_iommu_probe()
@ 2023-03-17 7:25 ` Harshit Mogalapalli
0 siblings, 0 replies; 4+ messages in thread
From: Harshit Mogalapalli @ 2023-03-17 7:25 UTC (permalink / raw)
Cc: error27, Harshit Mogalapalli, Joerg Roedel, Will Deacon,
Robin Murphy, Heiko Stuebner, Marc Zyngier, Olof Johansson,
iommu, linux-arm-kernel, linux-rockchip, linux-kernel
Smatch reports:
drivers/iommu/rockchip-iommu.c:1306
rk_iommu_probe() warn: missing unwind goto?
Smatch detects that when (irq < 0) we are directly returning without
doing the cleanup.
Fix this by adding a pm_runtime_disable(dev), and using correct goto
label 'err_remove_sysfs' instead of a direct return.
Fixes: 1aa55ca9b14a ("iommu/rockchip: Move irq request past pm_runtime_enable")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
---
This is purely based on static analysis. Only compile tested.
---
drivers/iommu/rockchip-iommu.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index f30db22ea5d7..0751f2e757fd 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1302,8 +1302,11 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < iommu->num_irq; i++) {
int irq = platform_get_irq(pdev, i);
- if (irq < 0)
- return irq;
+ if (irq < 0) {
+ pm_runtime_disable(dev);
+ err = irq;
+ goto err_remove_sysfs;
+ }
err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
IRQF_SHARED, dev_name(dev), iommu);
--
2.38.1
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Linux-rockchip@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-rockchip
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] iommu: rockchip: Fix missing unwind goto in rk_iommu_probe()
@ 2023-03-17 7:25 ` Harshit Mogalapalli
0 siblings, 0 replies; 4+ messages in thread
From: Harshit Mogalapalli @ 2023-03-17 7:25 UTC (permalink / raw)
Cc: error27, Harshit Mogalapalli, Joerg Roedel, Will Deacon,
Robin Murphy, Heiko Stuebner, Marc Zyngier, Olof Johansson,
iommu, linux-arm-kernel, linux-rockchip, linux-kernel
Smatch reports:
drivers/iommu/rockchip-iommu.c:1306
rk_iommu_probe() warn: missing unwind goto?
Smatch detects that when (irq < 0) we are directly returning without
doing the cleanup.
Fix this by adding a pm_runtime_disable(dev), and using correct goto
label 'err_remove_sysfs' instead of a direct return.
Fixes: 1aa55ca9b14a ("iommu/rockchip: Move irq request past pm_runtime_enable")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
---
This is purely based on static analysis. Only compile tested.
---
drivers/iommu/rockchip-iommu.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index f30db22ea5d7..0751f2e757fd 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1302,8 +1302,11 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < iommu->num_irq; i++) {
int irq = platform_get_irq(pdev, i);
- if (irq < 0)
- return irq;
+ if (irq < 0) {
+ pm_runtime_disable(dev);
+ err = irq;
+ goto err_remove_sysfs;
+ }
err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
IRQF_SHARED, dev_name(dev), iommu);
--
2.38.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] iommu: rockchip: Fix missing unwind goto in rk_iommu_probe()
@ 2023-03-17 7:25 ` Harshit Mogalapalli
0 siblings, 0 replies; 4+ messages in thread
From: Harshit Mogalapalli @ 2023-03-17 7:25 UTC (permalink / raw)
Cc: error27, Harshit Mogalapalli, Joerg Roedel, Will Deacon,
Robin Murphy, Heiko Stuebner, Marc Zyngier, Olof Johansson,
iommu, linux-arm-kernel, linux-rockchip, linux-kernel
Smatch reports:
drivers/iommu/rockchip-iommu.c:1306
rk_iommu_probe() warn: missing unwind goto?
Smatch detects that when (irq < 0) we are directly returning without
doing the cleanup.
Fix this by adding a pm_runtime_disable(dev), and using correct goto
label 'err_remove_sysfs' instead of a direct return.
Fixes: 1aa55ca9b14a ("iommu/rockchip: Move irq request past pm_runtime_enable")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
---
This is purely based on static analysis. Only compile tested.
---
drivers/iommu/rockchip-iommu.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index f30db22ea5d7..0751f2e757fd 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1302,8 +1302,11 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < iommu->num_irq; i++) {
int irq = platform_get_irq(pdev, i);
- if (irq < 0)
- return irq;
+ if (irq < 0) {
+ pm_runtime_disable(dev);
+ err = irq;
+ goto err_remove_sysfs;
+ }
err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
IRQF_SHARED, dev_name(dev), iommu);
--
2.38.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* [PATCH] iommu: rockchip: Fix missing unwind goto in rk_iommu_probe()
@ 2023-03-17 7:25 ` Harshit Mogalapalli
0 siblings, 0 replies; 4+ messages in thread
From: Harshit Mogalapalli @ 2023-03-17 7:25 UTC (permalink / raw)
Cc: error27, Harshit Mogalapalli, Joerg Roedel, Will Deacon,
Robin Murphy, Heiko Stuebner, Marc Zyngier, Olof Johansson,
iommu, linux-arm-kernel, linux-rockchip, linux-kernel
Smatch reports:
drivers/iommu/rockchip-iommu.c:1306
rk_iommu_probe() warn: missing unwind goto?
Smatch detects that when (irq < 0) we are directly returning without
doing the cleanup.
Fix this by adding a pm_runtime_disable(dev), and using correct goto
label 'err_remove_sysfs' instead of a direct return.
Fixes: 1aa55ca9b14a ("iommu/rockchip: Move irq request past pm_runtime_enable")
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
---
This is purely based on static analysis. Only compile tested.
---
drivers/iommu/rockchip-iommu.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c
index f30db22ea5d7..0751f2e757fd 100644
--- a/drivers/iommu/rockchip-iommu.c
+++ b/drivers/iommu/rockchip-iommu.c
@@ -1302,8 +1302,11 @@ static int rk_iommu_probe(struct platform_device *pdev)
for (i = 0; i < iommu->num_irq; i++) {
int irq = platform_get_irq(pdev, i);
- if (irq < 0)
- return irq;
+ if (irq < 0) {
+ pm_runtime_disable(dev);
+ err = irq;
+ goto err_remove_sysfs;
+ }
err = devm_request_irq(iommu->dev, irq, rk_iommu_irq,
IRQF_SHARED, dev_name(dev), iommu);
--
2.38.1
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply related [flat|nested] 4+ messages in thread
end of thread, other threads:[~2023-03-17 7:26 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2023-03-17 7:25 [PATCH] iommu: rockchip: Fix missing unwind goto in rk_iommu_probe() Harshit Mogalapalli
2023-03-17 7:25 ` Harshit Mogalapalli
2023-03-17 7:25 ` Harshit Mogalapalli
2023-03-17 7:25 ` Harshit Mogalapalli
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