OrgACRN
/
acrn-kernel
mirror of https://github.com/projectacrn/acrn-kernel.git
1
0
Fork 0
Code Issues Releases Wiki Activity

hwmon: (nct6775) Fix incorrect parenthesization in nct6775_write_fan_div() 

commit 2fbb848b65 upstream.

Commit 4ef2774511 ("hwmon: (nct6775) Convert register access to
regmap API") fumbled the shifting & masking of the fan_div values such
that odd-numbered fan divisors would always be set to zero.  Fix it so
that we actually OR in the bits we meant to.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Fixes: 4ef2774511 ("hwmon: (nct6775) Convert register access to regmap API")
Cc: stable@kernel.org # v5.19+
Link: https://lore.kernel.org/r/20230102212857.5670-1-zev@bewilderbeest.net
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zev Weiss 2023-01-02 13:28:57 -08:00 committed by Greg Kroah-Hartman
parent 57c07e552e
commit 688ae6ce05
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/hwmon/nct6775-core.c
View File

@ -1150,7 +1150,7 @@ static int nct6775_write_fan_div(struct nct6775_data *data, int nr)
if (err)
return err;
reg &= 0x70 >> oddshift;
reg |= data->fan_div[nr] & (0x7 << oddshift);
reg |= (data->fan_div[nr] & 0x7) << oddshift;
return nct6775_write_value(data, fandiv_reg, reg);
}