diff options
Diffstat (limited to 'drivers/w1/masters/ds1wm.c')
| -rw-r--r-- | drivers/w1/masters/ds1wm.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/w1/masters/ds1wm.c b/drivers/w1/masters/ds1wm.c index 02df3b1381d2..b077b8b42758 100644 --- a/drivers/w1/masters/ds1wm.c +++ b/drivers/w1/masters/ds1wm.c @@ -326,13 +326,14 @@ static void ds1wm_search(void *data, struct w1_master *master_dev, unsigned slaves_found = 0; unsigned int pass = 0; + mutex_lock(&master_dev->bus_mutex); dev_dbg(&ds1wm_data->pdev->dev, "search begin\n"); while (true) { ++pass; if (pass > 100) { dev_dbg(&ds1wm_data->pdev->dev, "too many attempts (100), search aborted\n"); - return; + break; } mutex_lock(&master_dev->bus_mutex); @@ -439,6 +440,7 @@ static void ds1wm_search(void *data, struct w1_master *master_dev, dev_dbg(&ds1wm_data->pdev->dev, "pass: %d total: %d search done ms d bit pos: %d\n", pass, slaves_found, ms_discrep_bit); + mutex_unlock(&master_dev->bus_mutex); } /* --------------------------------------------------------------------- */ |