Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit dd0aa67c authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
Browse files

Revert "w1: introduce a slave mutex for serializing IO" 



This reverts commit 59d4467b.

Turns out it was the wrong version, will apply the correct version after
this.

Reported-by: default avatarNeilBrown <neilb@suse.de>
Cc: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 526be416

drivers/w1/slaves/w1_bq27000.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

}

drivers/w1/w1.c

+0 −1
Original line number Diff line number Diff line
@@ -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);

drivers/w1/w1.h

+0 −1
Original line number Diff line number Diff line
@@ -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);