[PATCH 4/4] Fix W1 slave exchange with second device on probe step

[Alex A. Mihaylov]

Signed-off-by: Alex A. Mihaylov <minimum...@rambler.ru>
---
 drivers/w1/w1.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index 90a3d93..5b8b976 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -731,6 +731,7 @@ 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, 1);
        atomic_inc(&sl->master->refcnt);
+       dev->slave_count++;
 
        /* slave modules need to be loaded in a context with unlocked mutex */
        mutex_unlock(&dev->mutex);
@@ -750,11 +751,11 @@ int w1_attach_slave_device(struct w1_master *dev, struct 
w1_reg_num *rn)
 
        sl->family = f;
 
-
        err = __w1_attach_slave_device(sl);
        if (err < 0) {
                dev_err(&dev->dev, "%s: Attaching %s failed.\n", __func__,
                         sl->name);
+               dev->slave_count--;
                w1_family_put(sl->family);
                atomic_dec(&sl->master->refcnt);
                kfree(sl);
@@ -762,7 +763,6 @@ int w1_attach_slave_device(struct w1_master *dev, struct 
w1_reg_num *rn)
        }
 
        sl->ttl = dev->slave_ttl;
-       dev->slave_count++;
 
        memcpy(msg.id.id, rn, sizeof(msg.id));
        msg.type = W1_SLAVE_ADD;
-- 
2.8.4 (Apple Git-73)