summaryrefslogtreecommitdiff
path: root/drivers/w1/slaves/w1_therm.c
diff options
context:
space:
mode:
authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-24 08:41:41 -0400
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-06-24 13:07:53 -0400
commit816724e65c72a90a44fbad0ef0b59b186c85fa90 (patch)
tree421fa29aedff988e392f92780637553e275d37a0 /drivers/w1/slaves/w1_therm.c
parent70ac4385a13f78bc478f26d317511893741b05bd (diff)
parentd384ea691fe4ea8c2dd5b9b8d9042eb181776f18 (diff)
downloadlinux-rt-816724e65c72a90a44fbad0ef0b59b186c85fa90.tar.gz
Merge branch 'master' of /home/trondmy/kernel/linux-2.6/
Conflicts: fs/nfs/inode.c fs/super.c Fix conflicts between patch 'NFS: Split fs/nfs/inode.c' and patch 'VFS: Permit filesystem to override root dentry on mount'
Diffstat (limited to 'drivers/w1/slaves/w1_therm.c')
-rw-r--r--drivers/w1/slaves/w1_therm.c13
1 files changed, 2 insertions, 11 deletions
diff --git a/drivers/w1/slaves/w1_therm.c b/drivers/w1/slaves/w1_therm.c
index 536d16d78de7..5372cfcbd054 100644
--- a/drivers/w1/slaves/w1_therm.c
+++ b/drivers/w1/slaves/w1_therm.c
@@ -29,7 +29,6 @@
#include <linux/delay.h>
#include "../w1.h"
-#include "../w1_io.h"
#include "../w1_int.h"
#include "../w1_family.h"
@@ -166,12 +165,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si
u8 rom[9], crc, verdict;
int i, max_trying = 10;
- atomic_inc(&sl->refcnt);
- smp_mb__after_atomic_inc();
- if (down_interruptible(&sl->master->mutex)) {
- count = 0;
- goto out_dec;
- }
+ mutex_lock(&sl->master->mutex);
if (off > W1_SLAVE_DATA_SIZE) {
count = 0;
@@ -234,10 +228,7 @@ static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, si
count += sprintf(buf + count, "t=%d\n", w1_convert_temp(rom, sl->family->fid));
out:
- up(&dev->mutex);
-out_dec:
- smp_mb__before_atomic_inc();
- atomic_dec(&sl->refcnt);
+ mutex_unlock(&dev->mutex);
return count;
}