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| author | Guenter Roeck <linux@roeck-us.net> | 2019-04-05 08:53:08 -0700 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-15 17:19:53 -0700 |
| commit | 14b97ba5c20056102b3dd22696bf17b057e60976 (patch) | |
| tree | 9362581d01c6774f92702205fcee2ac12777b0cc /drivers/hwmon/max6642.c | |
| parent | e95fd518d05bfc087da6fcdea4900a57cfb083bd (diff) | |
| download | linux-14b97ba5c20056102b3dd22696bf17b057e60976.tar.bz2 | |
hwmon: (vt1211) Use request_muxed_region for Super-IO accesses
Super-IO accesses may fail on a system with no or unmapped LPC bus.
Also, other drivers may attempt to access the LPC bus at the same time,
resulting in undefined behavior.
Use request_muxed_region() to ensure that IO access on the requested
address space is supported, and to ensure that access by multiple drivers
is synchronized.
Fixes: 2219cd81a6cd ("hwmon/vt1211: Add probing of alternate config index port")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/max6642.c')
0 files changed, 0 insertions, 0 deletions