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-rw-r--r--drivers/s390/char/con3215.c8
-rw-r--r--drivers/s390/char/raw3270.c9
-rw-r--r--drivers/s390/cio/device.c29
3 files changed, 32 insertions, 14 deletions
diff --git a/drivers/s390/char/con3215.c b/drivers/s390/char/con3215.c
index bb86494e2b7b..5af7f0bd6125 100644
--- a/drivers/s390/char/con3215.c
+++ b/drivers/s390/char/con3215.c
@@ -922,7 +922,7 @@ static int __init con3215_init(void)
raw3215_freelist = req;
}
- cdev = ccw_device_probe_console(&raw3215_ccw_driver);
+ cdev = ccw_device_create_console(&raw3215_ccw_driver);
if (IS_ERR(cdev))
return -ENODEV;
@@ -932,6 +932,12 @@ static int __init con3215_init(void)
cdev->handler = raw3215_irq;
raw->flags |= RAW3215_FIXED;
+ if (ccw_device_enable_console(cdev)) {
+ ccw_device_destroy_console(cdev);
+ raw3215_free_info(raw);
+ raw3215[0] = NULL;
+ return -ENODEV;
+ }
/* Request the console irq */
if (raw3215_startup(raw) != 0) {
diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c
index de2c0483949f..041c65bc7bb1 100644
--- a/drivers/s390/char/raw3270.c
+++ b/drivers/s390/char/raw3270.c
@@ -790,7 +790,7 @@ struct raw3270 __init *raw3270_setup_console(void)
char *ascebc;
int rc;
- cdev = ccw_device_probe_console(&raw3270_ccw_driver);
+ cdev = ccw_device_create_console(&raw3270_ccw_driver);
if (IS_ERR(cdev))
return ERR_CAST(cdev);
@@ -800,6 +800,13 @@ struct raw3270 __init *raw3270_setup_console(void)
if (rc)
return ERR_PTR(rc);
set_bit(RAW3270_FLAGS_CONSOLE, &rp->flags);
+
+ rc = ccw_device_enable_console(cdev);
+ if (rc) {
+ ccw_device_destroy_console(cdev);
+ return ERR_PTR(rc);
+ }
+
spin_lock_irqsave(get_ccwdev_lock(rp->cdev), flags);
do {
__raw3270_reset_device(rp);
diff --git a/drivers/s390/cio/device.c b/drivers/s390/cio/device.c
index 4283dd3cdd49..da431992fd8e 100644
--- a/drivers/s390/cio/device.c
+++ b/drivers/s390/cio/device.c
@@ -1572,11 +1572,14 @@ out:
}
#ifdef CONFIG_CCW_CONSOLE
-static int ccw_device_console_enable(struct ccw_device *cdev,
- struct subchannel *sch)
+int __init ccw_device_enable_console(struct ccw_device *cdev)
{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
int rc;
+ if (!cdev->drv || !cdev->handler)
+ return -EINVAL;
+
io_subchannel_init_fields(sch);
rc = cio_commit_config(sch);
if (rc)
@@ -1609,12 +1612,11 @@ out_unlock:
return rc;
}
-struct ccw_device *ccw_device_probe_console(struct ccw_driver *drv)
+struct ccw_device * __init ccw_device_create_console(struct ccw_driver *drv)
{
struct io_subchannel_private *io_priv;
struct ccw_device *cdev;
struct subchannel *sch;
- int ret;
sch = cio_probe_console();
if (IS_ERR(sch))
@@ -1633,17 +1635,20 @@ struct ccw_device *ccw_device_probe_console(struct ccw_driver *drv)
}
cdev->drv = drv;
set_io_private(sch, io_priv);
- ret = ccw_device_console_enable(cdev, sch);
- if (ret) {
- set_io_private(sch, NULL);
- put_device(&sch->dev);
- put_device(&cdev->dev);
- kfree(io_priv);
- return ERR_PTR(ret);
- }
return cdev;
}
+void __init ccw_device_destroy_console(struct ccw_device *cdev)
+{
+ struct subchannel *sch = to_subchannel(cdev->dev.parent);
+ struct io_subchannel_private *io_priv = to_io_private(sch);
+
+ set_io_private(sch, NULL);
+ put_device(&sch->dev);
+ put_device(&cdev->dev);
+ kfree(io_priv);
+}
+
/**
* ccw_device_wait_idle() - busy wait for device to become idle
* @cdev: ccw device