diff options
Diffstat (limited to 'drivers/w1/slaves/w1_ds2433.c')
| -rw-r--r-- | drivers/w1/slaves/w1_ds2433.c | 21 |
1 files changed, 4 insertions, 17 deletions
diff --git a/drivers/w1/slaves/w1_ds2433.c b/drivers/w1/slaves/w1_ds2433.c index fb118be789ea..2ac238f1480e 100644 --- a/drivers/w1/slaves/w1_ds2433.c +++ b/drivers/w1/slaves/w1_ds2433.c @@ -22,7 +22,6 @@ #endif #include "../w1.h" -#include "../w1_io.h" #include "../w1_int.h" #include "../w1_family.h" @@ -106,11 +105,7 @@ static ssize_t w1_f23_read_bin(struct kobject *kobj, char *buf, loff_t off, if ((count = w1_f23_fix_count(off, count, W1_EEPROM_SIZE)) == 0) return 0; - atomic_inc(&sl->refcnt); - if (down_interruptible(&sl->master->mutex)) { - count = 0; - goto out_dec; - } + mutex_lock(&sl->master->mutex); #ifdef CONFIG_W1_F23_CRC @@ -141,9 +136,7 @@ static ssize_t w1_f23_read_bin(struct kobject *kobj, char *buf, loff_t off, #endif /* CONFIG_W1_F23_CRC */ out_up: - up(&sl->master->mutex); -out_dec: - atomic_dec(&sl->refcnt); + mutex_unlock(&sl->master->mutex); return count; } @@ -232,11 +225,7 @@ static ssize_t w1_f23_write_bin(struct kobject *kobj, char *buf, loff_t off, } #endif /* CONFIG_W1_F23_CRC */ - atomic_inc(&sl->refcnt); - if (down_interruptible(&sl->master->mutex)) { - count = 0; - goto out_dec; - } + mutex_lock(&sl->master->mutex); /* Can only write data to one page at a time */ idx = 0; @@ -254,9 +243,7 @@ static ssize_t w1_f23_write_bin(struct kobject *kobj, char *buf, loff_t off, } out_up: - up(&sl->master->mutex); -out_dec: - atomic_dec(&sl->refcnt); + mutex_unlock(&sl->master->mutex); return count; } |