This is a note to let you know that I've just added the patch titled
usb: musb: Modify the "HWVers" register address
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-musb-modify-the-hwvers-register-address.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 6658a62e1ddf726483cb2d8bf45ea3f9bd533074 Mon Sep 17 00:00:00 2001
From: Xingxing Luo <xingxing.luo@xxxxxxxxxx>
Date: Fri, 22 Sep 2023 15:59:29 +0800
Subject: usb: musb: Modify the "HWVers" register address
From: Xingxing Luo <xingxing.luo@xxxxxxxxxx>
commit 6658a62e1ddf726483cb2d8bf45ea3f9bd533074 upstream.
musb HWVers rgister address is not 0x69, if we operate the
wrong address 0x69, it will cause a kernel crash, because
there is no register corresponding to this address in the
additional control register of musb. In fact, HWVers has
been defined in musb_register.h, and the name is
"MUSB_HWVERS", so We need to use this macro instead of 0x69.
Fixes: c2365ce5d5a0 ("usb: musb: replace hard coded registers with defines")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Xingxing Luo <xingxing.luo@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20230922075929.31074-1-xingxing.luo@xxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/musb/musb_debugfs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -39,7 +39,7 @@ static const struct musb_register_map mu
{ "IntrUsbE", MUSB_INTRUSBE, 8 },
{ "DevCtl", MUSB_DEVCTL, 8 },
{ "VControl", 0x68, 32 },
- { "HWVers", 0x69, 16 },
+ { "HWVers", MUSB_HWVERS, 16 },
{ "LinkInfo", MUSB_LINKINFO, 8 },
{ "VPLen", MUSB_VPLEN, 8 },
{ "HS_EOF1", MUSB_HS_EOF1, 8 },
Patches currently in stable-queue which might be from xingxing.luo@xxxxxxxxxx are
queue-5.4/usb-musb-modify-the-hwvers-register-address.patch
queue-5.4/usb-musb-get-the-musb_qh-poniter-after-musb_giveback.patch
