* [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure
@ 2022-08-30 12:13 Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 2/3] slimbus: qcom-ngd: cleanup in probe error path Krzysztof Kozlowski
` (2 more replies)
0 siblings, 3 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2022-08-30 12:13 UTC (permalink / raw)
To: Andy Gross, Bjorn Andersson, Konrad Dybcio, Srinivas Kandagatla,
Greg Kroah-Hartman, linux-arm-msm, alsa-devel, linux-kernel
Cc: Krzysztof Kozlowski, stable
Use cprrect error code, instead of previous 'ret' value, when printing
error from pdr_add_lookup() failure.
Cc: <stable@vger.kernel.org>
Fixes: e1ae85e1830e ("slimbus: qcom-ngd-ctrl: add Protection Domain Restart Support")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
drivers/slimbus/qcom-ngd-ctrl.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index 0aa8408464ad..6fe6abb86061 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1581,6 +1581,7 @@ static int qcom_slim_ngd_ctrl_probe(struct platform_device *pdev)
pds = pdr_add_lookup(ctrl->pdr, "avs/audio", "msm/adsp/audio_pd");
if (IS_ERR(pds) && PTR_ERR(pds) != -EALREADY) {
+ ret = PTR_ERR(pds);
dev_err(dev, "pdr add lookup failed: %d\n", ret);
return PTR_ERR(pds);
}
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 2/3] slimbus: qcom-ngd: cleanup in probe error path
2022-08-30 12:13 [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Krzysztof Kozlowski
@ 2022-08-30 12:13 ` Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 3/3] slimbus: qcom-ngd: simplify error paths with dev_err_probe Krzysztof Kozlowski
2022-08-30 17:33 ` [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Jeff Johnson
2 siblings, 0 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2022-08-30 12:13 UTC (permalink / raw)
To: Andy Gross, Bjorn Andersson, Konrad Dybcio, Srinivas Kandagatla,
Greg Kroah-Hartman, linux-arm-msm, alsa-devel, linux-kernel
Cc: Krzysztof Kozlowski, stable
Add proper error path in probe() to cleanup resources previously
acquired/allocated:
notifier callback qcom_slim_ngd_ssr_notify already registered
WARNING: CPU: 6 PID: 70 at kernel/notifier.c:28 notifier_chain_register+0x5c/0x90
Modules linked in:
CPU: 6 PID: 70 Comm: kworker/u16:1 Not tainted 6.0.0-rc3-next-20220830 #380
Call trace:
notifier_chain_register+0x5c/0x90
srcu_notifier_chain_register+0x44/0x90
qcom_register_ssr_notifier+0x38/0x4c
qcom_slim_ngd_ctrl_probe+0xd8/0x400
platform_probe+0x6c/0xe0
really_probe+0xbc/0x2d4
__driver_probe_device+0x78/0xe0
driver_probe_device+0x3c/0x12c
__device_attach_driver+0xb8/0x120
bus_for_each_drv+0x78/0xd0
__device_attach+0xa8/0x1c0
device_initial_probe+0x18/0x24
bus_probe_device+0xa0/0xac
deferred_probe_work_func+0x88/0xc0
process_one_work+0x1d4/0x320
worker_thread+0x2cc/0x44c
kthread+0x110/0x114
ret_from_fork+0x10/0x20
Cc: <stable@vger.kernel.org>
Fixes: e1ae85e1830e ("slimbus: qcom-ngd-ctrl: add Protection Domain Restart Support")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
drivers/slimbus/qcom-ngd-ctrl.c | 13 +++++++++++--
1 file changed, 11 insertions(+), 2 deletions(-)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index 6fe6abb86061..bacc6af1d51e 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1576,18 +1576,27 @@ static int qcom_slim_ngd_ctrl_probe(struct platform_device *pdev)
ctrl->pdr = pdr_handle_alloc(slim_pd_status, ctrl);
if (IS_ERR(ctrl->pdr)) {
dev_err(dev, "Failed to init PDR handle\n");
- return PTR_ERR(ctrl->pdr);
+ ret = PTR_ERR(ctrl->pdr);
+ goto err_pdr_alloc;
}
pds = pdr_add_lookup(ctrl->pdr, "avs/audio", "msm/adsp/audio_pd");
if (IS_ERR(pds) && PTR_ERR(pds) != -EALREADY) {
ret = PTR_ERR(pds);
dev_err(dev, "pdr add lookup failed: %d\n", ret);
- return PTR_ERR(pds);
+ goto err_pdr_lookup;
}
platform_driver_register(&qcom_slim_ngd_driver);
return of_qcom_slim_ngd_register(dev, ctrl);
+
+err_pdr_alloc:
+ qcom_unregister_ssr_notifier(ctrl->notifier, &ctrl->nb);
+
+err_pdr_lookup:
+ pdr_handle_release(ctrl->pdr);
+
+ return ret;
}
static int qcom_slim_ngd_ctrl_remove(struct platform_device *pdev)
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH 3/3] slimbus: qcom-ngd: simplify error paths with dev_err_probe
2022-08-30 12:13 [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 2/3] slimbus: qcom-ngd: cleanup in probe error path Krzysztof Kozlowski
@ 2022-08-30 12:13 ` Krzysztof Kozlowski
2022-08-30 17:33 ` [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Jeff Johnson
2 siblings, 0 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2022-08-30 12:13 UTC (permalink / raw)
To: Andy Gross, Bjorn Andersson, Konrad Dybcio, Srinivas Kandagatla,
Greg Kroah-Hartman, linux-arm-msm, alsa-devel, linux-kernel
Cc: Krzysztof Kozlowski
Use dev_err_probe to skip printing of deferred probe errors and to
simplify error paths.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
---
drivers/slimbus/qcom-ngd-ctrl.c | 13 +++++--------
1 file changed, 5 insertions(+), 8 deletions(-)
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index bacc6af1d51e..cec11aa106bf 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1543,10 +1543,8 @@ static int qcom_slim_ngd_ctrl_probe(struct platform_device *pdev)
ret = devm_request_irq(dev, ret, qcom_slim_ngd_interrupt,
IRQF_TRIGGER_HIGH, "slim-ngd", ctrl);
- if (ret) {
- dev_err(&pdev->dev, "request IRQ failed\n");
- return ret;
- }
+ if (ret)
+ return dev_err_probe(&pdev->dev, ret, "request IRQ failed\n");
ctrl->nb.notifier_call = qcom_slim_ngd_ssr_notify;
ctrl->notifier = qcom_register_ssr_notifier("lpass", &ctrl->nb);
@@ -1575,15 +1573,14 @@ static int qcom_slim_ngd_ctrl_probe(struct platform_device *pdev)
ctrl->pdr = pdr_handle_alloc(slim_pd_status, ctrl);
if (IS_ERR(ctrl->pdr)) {
- dev_err(dev, "Failed to init PDR handle\n");
- ret = PTR_ERR(ctrl->pdr);
+ ret = dev_err_probe(dev, PTR_ERR(ctrl->pdr),
+ "Failed to init PDR handle\n");
goto err_pdr_alloc;
}
pds = pdr_add_lookup(ctrl->pdr, "avs/audio", "msm/adsp/audio_pd");
if (IS_ERR(pds) && PTR_ERR(pds) != -EALREADY) {
- ret = PTR_ERR(pds);
- dev_err(dev, "pdr add lookup failed: %d\n", ret);
+ ret = dev_err_probe(dev, PTR_ERR(pds), "pdr add lookup failed\n");
goto err_pdr_lookup;
}
--
2.34.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure
2022-08-30 12:13 [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 2/3] slimbus: qcom-ngd: cleanup in probe error path Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 3/3] slimbus: qcom-ngd: simplify error paths with dev_err_probe Krzysztof Kozlowski
@ 2022-08-30 17:33 ` Jeff Johnson
2022-08-30 17:48 ` Krzysztof Kozlowski
2 siblings, 1 reply; 5+ messages in thread
From: Jeff Johnson @ 2022-08-30 17:33 UTC (permalink / raw)
To: Krzysztof Kozlowski, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Srinivas Kandagatla, Greg Kroah-Hartman, linux-arm-msm,
alsa-devel, linux-kernel
Cc: stable
On 8/30/2022 5:13 AM, Krzysztof Kozlowski wrote:
> Use cprrect error code, instead of previous 'ret' value, when printing
s/cprrect/correct/
> error from pdr_add_lookup() failure.
>
> Cc: <stable@vger.kernel.org>
> Fixes: e1ae85e1830e ("slimbus: qcom-ngd-ctrl: add Protection Domain Restart Support")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> ---
> drivers/slimbus/qcom-ngd-ctrl.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
> index 0aa8408464ad..6fe6abb86061 100644
> --- a/drivers/slimbus/qcom-ngd-ctrl.c
> +++ b/drivers/slimbus/qcom-ngd-ctrl.c
> @@ -1581,6 +1581,7 @@ static int qcom_slim_ngd_ctrl_probe(struct platform_device *pdev)
>
> pds = pdr_add_lookup(ctrl->pdr, "avs/audio", "msm/adsp/audio_pd");
> if (IS_ERR(pds) && PTR_ERR(pds) != -EALREADY) {
> + ret = PTR_ERR(pds);
> dev_err(dev, "pdr add lookup failed: %d\n", ret);
> return PTR_ERR(pds);
return ret?
> }
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure
2022-08-30 17:33 ` [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Jeff Johnson
@ 2022-08-30 17:48 ` Krzysztof Kozlowski
0 siblings, 0 replies; 5+ messages in thread
From: Krzysztof Kozlowski @ 2022-08-30 17:48 UTC (permalink / raw)
To: Jeff Johnson, Andy Gross, Bjorn Andersson, Konrad Dybcio,
Srinivas Kandagatla, Greg Kroah-Hartman, linux-arm-msm,
alsa-devel, linux-kernel
Cc: stable
On 30/08/2022 20:33, Jeff Johnson wrote:
> On 8/30/2022 5:13 AM, Krzysztof Kozlowski wrote:
>> Use cprrect error code, instead of previous 'ret' value, when printing
>
> s/cprrect/correct/
>
Thanks. I'll fix it.
Best regards,
Krzysztof
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-08-30 17:52 UTC | newest]
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2022-08-30 12:13 [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 2/3] slimbus: qcom-ngd: cleanup in probe error path Krzysztof Kozlowski
2022-08-30 12:13 ` [PATCH 3/3] slimbus: qcom-ngd: simplify error paths with dev_err_probe Krzysztof Kozlowski
2022-08-30 17:33 ` [PATCH 1/3] slimbus: qcom-ngd: use correct error in message of pdr_add_lookup() failure Jeff Johnson
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