CVS commit: src/sys/dev/isa

["Shoichi YAMAGUCHI" <yamaguchi%netbsd.org@localhost>]

Module Name:    src
Committed By:   yamaguchi
Date:           Wed Apr 25 08:29:45 UTC 2018

Modified Files:
        src/sys/dev/isa: wbsio.c

Log Message:
Use spin mutex to fix a panic

The GPIO part of wbsio(4) has a lock to keep the register access
order. In addition to the lock, gpio(4) has a look to prevent
multiple control through gpio_pin_ctl(). Those locks hold at
once when gpio_pin_ctl() is called, and the lock of gpio(4) hold
before that of wbsio(4).

Therefore, the wbsio(4) has to use spin lock if gpio(4) uses
spin lock.


To generate a diff of this commit:
cvs rdiff -u -r1.23 -r1.24 src/sys/dev/isa/wbsio.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.