* [PATCH] PM / wakeup: Skip wakeup_source_sysfs_remove if device is not added
@ 2020-03-23 5:08 Neeraj Upadhyay
2020-03-25 10:37 ` Rafael J. Wysocki
0 siblings, 1 reply; 2+ messages in thread
From: Neeraj Upadhyay @ 2020-03-23 5:08 UTC (permalink / raw)
To: rjw, pavel, len.brown, gregkh, swboyd
Cc: linux-pm, linux-kernel, irgeorgiev, linux-arm-msm, Neeraj Upadhyay
Skip wakeup_source_sysfs_remove(), to fix null pinter access of
ws->dev, if wakeup source is unregistered before wakeup class
is registered from device_add().
Fixes: 2ca3d1ecb8c4 ("PM / wakeup: Register wakeup class kobj after device is added")
Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
---
drivers/base/power/wakeup.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 27f3e60..f8f8c0a 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -241,7 +241,8 @@ void wakeup_source_unregister(struct wakeup_source *ws)
{
if (ws) {
wakeup_source_remove(ws);
- wakeup_source_sysfs_remove(ws);
+ if (ws->dev)
+ wakeup_source_sysfs_remove(ws);
wakeup_source_destroy(ws);
}
}
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a
member of the Code Aurora Forum, hosted by The Linux Foundation
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] PM / wakeup: Skip wakeup_source_sysfs_remove if device is not added
2020-03-23 5:08 [PATCH] PM / wakeup: Skip wakeup_source_sysfs_remove if device is not added Neeraj Upadhyay
@ 2020-03-25 10:37 ` Rafael J. Wysocki
0 siblings, 0 replies; 2+ messages in thread
From: Rafael J. Wysocki @ 2020-03-25 10:37 UTC (permalink / raw)
To: Neeraj Upadhyay
Cc: pavel, len.brown, gregkh, swboyd, linux-pm, linux-kernel,
irgeorgiev, linux-arm-msm
On Monday, March 23, 2020 6:08:51 AM CET Neeraj Upadhyay wrote:
> Skip wakeup_source_sysfs_remove(), to fix null pinter access of
> ws->dev, if wakeup source is unregistered before wakeup class
> is registered from device_add().
>
> Fixes: 2ca3d1ecb8c4 ("PM / wakeup: Register wakeup class kobj after device is added")
> Signed-off-by: Neeraj Upadhyay <neeraju@codeaurora.org>
> ---
> drivers/base/power/wakeup.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
> index 27f3e60..f8f8c0a 100644
> --- a/drivers/base/power/wakeup.c
> +++ b/drivers/base/power/wakeup.c
> @@ -241,7 +241,8 @@ void wakeup_source_unregister(struct wakeup_source *ws)
> {
> if (ws) {
> wakeup_source_remove(ws);
> - wakeup_source_sysfs_remove(ws);
> + if (ws->dev)
> + wakeup_source_sysfs_remove(ws);
> wakeup_source_destroy(ws);
> }
> }
>
Applied (with some minor changes) as 5.7 material, thanks!
^ permalink raw reply [flat|nested] 2+ messages in thread
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2020-03-25 10:37 ` Rafael J. Wysocki
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