Commit a290156f authored by Sebastian Ott's avatar Sebastian Ott Committed by Martin Schwidefsky
Browse files

[S390] cio: fix init_count in case of recognition after steal lock



After we try to steal a lock on a ccw device in boxed state,
we have to restart device recognition and potentially reprobing.

In this case ccw_device_init_count was erroneously decreased
twice. This patch fixes the issue.
Signed-off-by: default avatarSebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent 52898025
......@@ -764,7 +764,7 @@ static void sch_create_and_recog_new_device(struct subchannel *sch)
static void io_subchannel_register(struct ccw_device *cdev)
{
struct subchannel *sch;
int ret;
int ret, adjust_init_count = 1;
unsigned long flags;
sch = to_subchannel(cdev->dev.parent);
......@@ -793,6 +793,7 @@ static void io_subchannel_register(struct ccw_device *cdev)
cdev->private->dev_id.ssid,
cdev->private->dev_id.devno);
}
adjust_init_count = 0;
goto out;
}
/*
......@@ -818,7 +819,7 @@ out:
cdev->private->flags.recog_done = 1;
wake_up(&cdev->private->wait_q);
out_err:
if (atomic_dec_and_test(&ccw_device_init_count))
if (adjust_init_count && atomic_dec_and_test(&ccw_device_init_count))
wake_up(&ccw_device_init_wq);
}
......
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