This is a note to let you know that I've just added the patch titled
USB: dwc3: fix runtime pm imbalance on unbind
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
usb-dwc3-fix-runtime-pm-imbalance-on-unbind.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 44d257e9012ee8040e41d224d0e5bfb5ef5427ea Mon Sep 17 00:00:00 2001
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
Date: Tue, 4 Apr 2023 09:25:15 +0200
Subject: USB: dwc3: fix runtime pm imbalance on unbind
From: Johan Hovold <johan+linaro@xxxxxxxxxx>
commit 44d257e9012ee8040e41d224d0e5bfb5ef5427ea upstream.
Make sure to balance the runtime PM usage count on driver unbind by
adding back the pm_runtime_allow() call that had been erroneously
removed.
Fixes: 266d0493900a ("usb: dwc3: core: don't trigger runtime pm when remove driver")
Cc: stable@xxxxxxxxxxxxxxx # 5.9
Cc: Li Jun <jun.li@xxxxxxx>
Acked-by: Thinh Nguyen <Thinh.Nguyen@xxxxxxxxxxxx>
Signed-off-by: Johan Hovold <johan+linaro@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230404072524.19014-3-johan+linaro@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/core.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1584,6 +1584,7 @@ static int dwc3_remove(struct platform_d
dwc3_core_exit(dwc);
dwc3_ulpi_exit(dwc);
+ pm_runtime_allow(&pdev->dev);
pm_runtime_disable(&pdev->dev);
pm_runtime_put_noidle(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
Patches currently in stable-queue which might be from johan+linaro@xxxxxxxxxx are
queue-5.4/xhci-fix-debugfs-register-accesses-while-suspended.patch
queue-5.4/usb-dwc3-fix-runtime-pm-imbalance-on-probe-errors.patch
queue-5.4/usb-dwc3-fix-runtime-pm-imbalance-on-unbind.patch
