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| author | Guenter Roeck <linux@roeck-us.net> | 2019-04-04 21:28:37 +0300 |
|---|---|---|
| committer | Guenter Roeck <linux@roeck-us.net> | 2019-04-16 03:19:53 +0300 |
| commit | d6410408ad2a798c4cc685252c1baa713be0ad69 (patch) | |
| tree | fade33aec84d75a24d83b417a259cc390359cf94 /drivers/i3c | |
| parent | 19f7b17630f22213d6529ed4cfa728d98d039505 (diff) | |
| download | linux-d6410408ad2a798c4cc685252c1baa713be0ad69.tar.xz | |
hwmon: (smsc47m1) 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: 8d5d45fb1468 ("I2C: Move hwmon drivers (2/3)")
Reported-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reported-by: John Garry <john.garry@huawei.com>
Cc: John Garry <john.garry@huawei.com>
Acked-by: John Garry <john.garry@huawei.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Diffstat (limited to 'drivers/i3c')
0 files changed, 0 insertions, 0 deletions