This is a note to let you know that I've just added the patch titled
usb: dwc3: xilinx: fix uninitialized return value
to the 5.15-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-xilinx-fix-uninitialized-return-value.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From b470947c3672f7eb7c4c271d510383d896831cc2 Mon Sep 17 00:00:00 2001
From: Robert Hancock <robert.hancock@xxxxxxxxxx>
Date: Thu, 27 Jan 2022 16:15:00 -0600
Subject: usb: dwc3: xilinx: fix uninitialized return value
From: Robert Hancock <robert.hancock@xxxxxxxxxx>
commit b470947c3672f7eb7c4c271d510383d896831cc2 upstream.
A previous patch to skip part of the initialization when a USB3 PHY was
not present could result in the return value being uninitialized in that
case, causing spurious probe failures. Initialize ret to 0 to avoid this.
Fixes: 9678f3361afc ("usb: dwc3: xilinx: Skip resets and USB3 register settings for USB2.0 mode")
Cc: <stable@xxxxxxxxxxxxxxx>
Reviewed-by: Nathan Chancellor <nathan@xxxxxxxxxx>
Signed-off-by: Robert Hancock <robert.hancock@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20220127221500.177021-1-robert.hancock@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/dwc3-xilinx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/dwc3/dwc3-xilinx.c
+++ b/drivers/usb/dwc3/dwc3-xilinx.c
@@ -99,7 +99,7 @@ static int dwc3_xlnx_init_zynqmp(struct
struct device *dev = priv_data->dev;
struct reset_control *crst, *hibrst, *apbrst;
struct phy *usb3_phy;
- int ret;
+ int ret = 0;
u32 reg;
usb3_phy = devm_phy_optional_get(dev, "usb3-phy");
Patches currently in stable-queue which might be from robert.hancock@xxxxxxxxxx are
queue-5.15/serial-8250-of-fix-mapped-region-size-when-using-reg-offset-property.patch
queue-5.15/net-phy-broadcom-hook-up-soft_reset-for-bcm54616s.patch
queue-5.15/usb-dwc3-xilinx-skip-resets-and-usb3-register-settings-for-usb2.0-mode.patch
queue-5.15/usb-dwc3-xilinx-fix-error-handling-when-getting-usb3-phy.patch
queue-5.15/usb-dwc3-xilinx-fix-uninitialized-return-value.patch
