* [PATCH] wlcore: mesh: handle failure case of pm_runtime_get_sync
@ 2020-06-05 3:27 Navid Emamdoost
2020-06-05 16:49 ` Tony Lindgren
2020-07-15 8:35 ` Kalle Valo
0 siblings, 2 replies; 3+ messages in thread
From: Navid Emamdoost @ 2020-06-05 3:27 UTC (permalink / raw)
To: Kalle Valo, David S. Miller, Johannes Berg, Thomas Gleixner,
Greg Kroah-Hartman, Hari Nagalla, Jason A. Donenfeld,
Emmanuel Grumbach, Maital Hahn, Fuqian Huang, Tony Lindgren,
Navid Emamdoost, linux-wireless, netdev, linux-kernel
Cc: emamd001, wu000273, kjlu, smccaman
Calling pm_runtime_get_sync increments the counter even in case of
failure, causing incorrect ref count. Call pm_runtime_put if
pm_runtime_get_sync fails.
Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
---
drivers/net/wireless/ti/wlcore/main.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/wireless/ti/wlcore/main.c b/drivers/net/wireless/ti/wlcore/main.c
index f140f7d7f553..c7e4f5a80b9e 100644
--- a/drivers/net/wireless/ti/wlcore/main.c
+++ b/drivers/net/wireless/ti/wlcore/main.c
@@ -3662,8 +3662,10 @@ void wlcore_regdomain_config(struct wl1271 *wl)
goto out;
ret = pm_runtime_get_sync(wl->dev);
- if (ret < 0)
+ if (ret < 0) {
+ pm_runtime_put_autosuspend(wl->dev);
goto out;
+ }
ret = wlcore_cmd_regdomain_config_locked(wl);
if (ret < 0) {
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread* Re: [PATCH] wlcore: mesh: handle failure case of pm_runtime_get_sync
2020-06-05 3:27 [PATCH] wlcore: mesh: handle failure case of pm_runtime_get_sync Navid Emamdoost
@ 2020-06-05 16:49 ` Tony Lindgren
2020-07-15 8:35 ` Kalle Valo
1 sibling, 0 replies; 3+ messages in thread
From: Tony Lindgren @ 2020-06-05 16:49 UTC (permalink / raw)
To: Navid Emamdoost
Cc: Kalle Valo, David S. Miller, Johannes Berg, Thomas Gleixner,
Greg Kroah-Hartman, Hari Nagalla, Jason A. Donenfeld,
Emmanuel Grumbach, Maital Hahn, Fuqian Huang, linux-wireless,
netdev, linux-kernel, emamd001, wu000273, kjlu, smccaman
* Navid Emamdoost <navid.emamdoost@gmail.com> [200605 03:28]:
> Calling pm_runtime_get_sync increments the counter even in case of
> failure, causing incorrect ref count. Call pm_runtime_put if
> pm_runtime_get_sync fails.
Looks like we have a similar patch already in Linux next,
care to check?
Regards,
Tony
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [PATCH] wlcore: mesh: handle failure case of pm_runtime_get_sync
2020-06-05 3:27 [PATCH] wlcore: mesh: handle failure case of pm_runtime_get_sync Navid Emamdoost
2020-06-05 16:49 ` Tony Lindgren
@ 2020-07-15 8:35 ` Kalle Valo
1 sibling, 0 replies; 3+ messages in thread
From: Kalle Valo @ 2020-07-15 8:35 UTC (permalink / raw)
To: Navid Emamdoost
Cc: David S. Miller, Johannes Berg, Thomas Gleixner,
Greg Kroah-Hartman, Hari Nagalla, Jason A. Donenfeld,
Emmanuel Grumbach, Maital Hahn, Fuqian Huang, Tony Lindgren,
Navid Emamdoost, linux-wireless, netdev, linux-kernel, emamd001,
wu000273, kjlu, smccaman
Navid Emamdoost <navid.emamdoost@gmail.com> wrote:
> Calling pm_runtime_get_sync increments the counter even in case of
> failure, causing incorrect ref count. Call pm_runtime_put if
> pm_runtime_get_sync fails.
>
> Signed-off-by: Navid Emamdoost <navid.emamdoost@gmail.com>
Already fixed by another patch.
Patch set to Rejected.
--
https://patchwork.kernel.org/patch/11588923/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
^ permalink raw reply [flat|nested] 3+ messages in thread
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