Thread (3 messages) flat view 3 messages, 2 authors, 2013-09-26

Re: therm_adt746x: -3 invalid for parameter limit_adjust

From: Christian Kujau <hidden>
Date: 2013-09-26 20:07:26

On Thu, 26 Sep 2013 at 11:39, Jean Delvare wrote:
I think it is a bug in:

commit 6072ddc8520b86adfac6939ca32fb6e6c4de017a
Author: Jingoo Han [off-list ref]
Date:   Thu Sep 12 15:14:07 2013 -0700

    kernel: replace strict_strto*() with kstrto*()

The change was a good idea but the code itself is not, it has kstrtoul
in many places where kstrtol should be used. Please try the following
patch, hopefully that should fix your problem:
Bingo, this did it! Applied to 3.12.0-rc2, the limit is now lowered again:

 $ modprobe therm_adt746x limit_adjust=-3
 $ dmesg
 [...]
 adt746x: Lowering max temperatures from 73, 80, 109 to 67, 47, 67

Thanks!

  Tested-by: Christian Kujau [off-list ref]

Christian.
quoted hunk ↗ jump to hunk
From: Jean Delvare <redacted>
Subject: kernel/params: Fix handling of signed integer types

Commit 6072ddc8520b86adfac6939ca32fb6e6c4de017a broke the handling
of signed integer types, fix it.

Reported-by: Christian Kujau <redacted>
Signed-off-by: Jean Delvare <redacted>
Cc: Jingoo Han <redacted>
Cc: Andrew Morton <akpm@linux-foundation.org>
---
 kernel/params.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)
--- linux-3.12-rc2.orig/kernel/params.c	2013-09-24 00:41:09.000000000 +0200
+++ linux-3.12-rc2/kernel/params.c	2013-09-26 11:32:43.434586197 +0200
@@ -254,11 +254,11 @@ int parse_args(const char *doing,
 
 
 STANDARD_PARAM_DEF(byte, unsigned char, "%hhu", unsigned long, kstrtoul);
-STANDARD_PARAM_DEF(short, short, "%hi", long, kstrtoul);
+STANDARD_PARAM_DEF(short, short, "%hi", long, kstrtol);
 STANDARD_PARAM_DEF(ushort, unsigned short, "%hu", unsigned long, kstrtoul);
-STANDARD_PARAM_DEF(int, int, "%i", long, kstrtoul);
+STANDARD_PARAM_DEF(int, int, "%i", long, kstrtol);
 STANDARD_PARAM_DEF(uint, unsigned int, "%u", unsigned long, kstrtoul);
-STANDARD_PARAM_DEF(long, long, "%li", long, kstrtoul);
+STANDARD_PARAM_DEF(long, long, "%li", long, kstrtol);
 STANDARD_PARAM_DEF(ulong, unsigned long, "%lu", unsigned long, kstrtoul);
 
 int param_set_charp(const char *val, const struct kernel_param *kp)

-- 
Jean Delvare
-- 
BOFH excuse #353:

Second-system effect.
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