This is a note to let you know that I've just added the patch titled
MIPS: Lantiq: fix missing xbar kernel panic
to the 4.9-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:
mips-lantiq-fix-missing-xbar-kernel-panic.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 6ef90877eee63a0d03e83183bb44b64229b624e6 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@xxxxxxxxxx>
Date: Wed, 15 Mar 2017 23:26:42 +0100
Subject: MIPS: Lantiq: fix missing xbar kernel panic
From: Hauke Mehrtens <hauke@xxxxxxxxxx>
commit 6ef90877eee63a0d03e83183bb44b64229b624e6 upstream.
Commit 08b3c894e565 ("MIPS: lantiq: Disable xbar fpi burst mode")
accidentally requested the resources from the pmu address region
instead of the xbar registers region, but the check for the return
value of request_mem_region() was wrong. Commit 98ea51cb0c8c ("MIPS:
Lantiq: Fix another request_mem_region() return code check") fixed the
check of the return value of request_mem_region() which made the kernel
panics.
This patch now makes use of the correct memory region for the cross bar.
Fixes: 08b3c894e565 ("MIPS: lantiq: Disable xbar fpi burst mode")
Signed-off-by: Hauke Mehrtens <hauke@xxxxxxxxxx>
Cc: John Crispin <john@xxxxxxxxxxx>
Cc: james.hogan@xxxxxxxxxx
Cc: arnd@xxxxxxxx
Cc: sergei.shtylyov@xxxxxxxxxxxxxxxxxx
Cc: john@xxxxxxxxxxx
Cc: linux-mips@xxxxxxxxxxxxxx
Patchwork: https://patchwork.linux-mips.org/patch/15751
Signed-off-by: Ralf Baechle <ralf@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/mips/lantiq/xway/sysctrl.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/mips/lantiq/xway/sysctrl.c
+++ b/arch/mips/lantiq/xway/sysctrl.c
@@ -467,7 +467,7 @@ void __init ltq_soc_init(void)
if (!np_xbar)
panic("Failed to load xbar nodes from devicetree");
- if (of_address_to_resource(np_pmu, 0, &res_xbar))
+ if (of_address_to_resource(np_xbar, 0, &res_xbar))
panic("Failed to get xbar resources");
if (request_mem_region(res_xbar.start, resource_size(&res_xbar),
res_xbar.name) < 0)
Patches currently in stable-queue which might be from hauke@xxxxxxxxxx are
queue-4.9/mips-lantiq-fix-missing-xbar-kernel-panic.patch