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* [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

end of thread, other threads:[~2020-07-15  8:35 UTC | newest]

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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

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