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| author | Guenter Roeck <linux@roeck-us.net> | 2019-04-05 18:44:41 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-16 03:19:53 +0300 |
| commit | e95fd518d05bfc087da6fcdea4900a57cfb083bd (patch) | |
| tree | 1f75021e709148ab6392db5524681f3a344fb6dd /drivers/hwmon/vt1211.c | |
| parent | d6410408ad2a798c4cc685252c1baa713be0ad69 (diff) | |
| download | linux-e95fd518d05bfc087da6fcdea4900a57cfb083bd.tar.xz | |
hwmon: (w83627hf) 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: b72656dbc491 ("hwmon: (w83627hf) Stop using globals for I/O port numbers")
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/hwmon/vt1211.c')
0 files changed, 0 insertions, 0 deletions