diff options
Diffstat (limited to 'drivers/w1/slaves/w1_bq27000.c')
| -rw-r--r-- | drivers/w1/slaves/w1_bq27000.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/w1/slaves/w1_bq27000.c index 8f4c91f..c876e37 100644 --- a/drivers/w1/slaves/w1_bq27000.c +++ b/drivers/w1/slaves/w1_bq27000.c @@ -47,8 +47,10 @@ int w1_bq27000_read(struct device *dev, u8 reg) if (!dev) return 0; + mutex_lock(&sl->master->bus_mutex); w1_write_8(sl->master, HDQ_CMD_READ | reg); val = w1_read_8(sl->master); + mutex_unlock(&sl->master->bus_mutex); return val; } |