This is a note to let you know that I've just added the patch titled
xhci: Free the command allocated for setting LPM if we return early
to the 6.2-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:
xhci-free-the-command-allocated-for-setting-lpm-if-we-return-early.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From f6caea4855553a8b99ba3ec23ecdb5ed8262f26c Mon Sep 17 00:00:00 2001
From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Date: Thu, 30 Mar 2023 17:30:56 +0300
Subject: xhci: Free the command allocated for setting LPM if we return early
From: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
commit f6caea4855553a8b99ba3ec23ecdb5ed8262f26c upstream.
The command allocated to set exit latency LPM values need to be freed in
case the command is never queued. This would be the case if there is no
change in exit latency values, or device is missing.
Reported-by: Mirsad Goran Todorovac <mirsad.todorovac@xxxxxxxxxxxx>
Link: https://lore.kernel.org/linux-usb/24263902-c9b3-ce29-237b-1c3d6918f4fe@xxxxxxxxxxxx
Tested-by: Mirsad Goran Todorovac <mirsad.todorovac@xxxxxxxxxxxx>
Fixes: 5c2a380a5aa8 ("xhci: Allocate separate command structures for each LPM command")
Cc: <Stable@xxxxxxxxxxxxxxx>
Signed-off-by: Mathias Nyman <mathias.nyman@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20230330143056.1390020-4-mathias.nyman@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/xhci.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4406,6 +4406,7 @@ static int __maybe_unused xhci_change_ma
if (!virt_dev || max_exit_latency == virt_dev->current_mel) {
spin_unlock_irqrestore(&xhci->lock, flags);
+ xhci_free_command(xhci, command);
return 0;
}
Patches currently in stable-queue which might be from mathias.nyman@xxxxxxxxxxxxxxx are
queue-6.2/revert-usb-xhci-pci-set-probe_prefer_asynchronous.patch
queue-6.2/xhci-also-avoid-the-xhci_zero_64b_regs-quirk-with-a-passthrough-iommu.patch
queue-6.2/xhci-free-the-command-allocated-for-setting-lpm-if-we-return-early.patch
