diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-13 16:33:54 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-13 16:33:54 -0700 |
| commit | dd0aa67cd7cf3f4a3ca52ecc1d6b82f3fad1352b (patch) | |
| tree | c7cc1c36872fa6e185acd78ec9545ee14b865c17 /drivers/w1 | |
| parent | 526be41625a8b2282d5720dcb19f927edbf193b4 (diff) | |
Revert "w1: introduce a slave mutex for serializing IO"
This reverts commit 59d4467be405316916a4087d5b02d99196eeef04.
Turns out it was the wrong version, will apply the correct version after
this.
Reported-by: NeilBrown <neilb@suse.de>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/w1')
| -rw-r--r-- | drivers/w1/slaves/w1_bq27000.c | 4 | ||||
| -rw-r--r-- | drivers/w1/w1.c | 1 | ||||
| -rw-r--r-- | drivers/w1/w1.h | 1 |
3 files changed, 2 insertions, 4 deletions
diff --git a/drivers/w1/slaves/w1_bq27000.c b/drivers/w1/slaves/w1_bq27000.c index 87554788fa3..52ad812fa1e 100644 --- a/drivers/w1/slaves/w1_bq27000.c +++ b/drivers/w1/slaves/w1_bq27000.c @@ -31,10 +31,10 @@ static int w1_bq27000_read(struct device *dev, unsigned int reg) u8 val; struct w1_slave *sl = container_of(dev->parent, struct w1_slave, dev); - mutex_lock(&sl->mutex); + mutex_lock(&sl->master->mutex); w1_write_8(sl->master, HDQ_CMD_READ | reg); val = w1_read_8(sl->master); - mutex_unlock(&sl->mutex); + mutex_unlock(&sl->master->mutex); return val; } diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c index 79e488db510..bfb89864102 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -686,7 +686,6 @@ static int w1_attach_slave_device(struct w1_master *dev, struct w1_reg_num *rn) memcpy(&sl->reg_num, rn, sizeof(sl->reg_num)); atomic_set(&sl->refcnt, 0); init_completion(&sl->released); - mutex_init(&sl->mutex); spin_lock(&w1_flock); f = w1_family_registered(rn->family); diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h index 8c8be380a98..4d012ca3f32 100644 --- a/drivers/w1/w1.h +++ b/drivers/w1/w1.h @@ -75,7 +75,6 @@ struct w1_slave void *family_data; struct device dev; struct completion released; - struct mutex mutex; }; typedef void (*w1_slave_found_callback)(struct w1_master *, u64); |