From: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
Don't use kfree directly after device registration started.
Signed-off-by: Sebastian Ott <sebott@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Martin Schwidefsky <schwidefsky@xxxxxxxxxx>
---
drivers/char/hvc_iucv.c | 2 +-
drivers/s390/char/monreader.c | 2 +-
drivers/s390/char/vmlogrdr.c | 4 +++-
drivers/s390/cio/chp.c | 3 ++-
drivers/s390/cio/css.c | 23 ++++++++---------------
drivers/s390/crypto/ap_bus.c | 2 +-
drivers/s390/net/netiucv.c | 9 ++++++---
drivers/s390/net/smsgiucv.c | 6 +++---
drivers/s390/scsi/zfcp_aux.c | 12 ++++++++----
9 files changed, 33 insertions(+), 30 deletions(-)
Index: quilt-2.6/drivers/char/hvc_iucv.c
===================================================================
--- quilt-2.6.orig/drivers/char/hvc_iucv.c
+++ quilt-2.6/drivers/char/hvc_iucv.c
@@ -1006,7 +1006,7 @@ static int __init hvc_iucv_alloc(int id,
priv->dev->release = (void (*)(struct device *)) kfree;
rc = device_register(priv->dev);
if (rc) {
- kfree(priv->dev);
+ put_device(priv->dev);
goto out_error_dev;
}
Index: quilt-2.6/drivers/s390/char/monreader.c
===================================================================
--- quilt-2.6.orig/drivers/s390/char/monreader.c
+++ quilt-2.6/drivers/s390/char/monreader.c
@@ -581,7 +581,7 @@ static int __init mon_init(void)
monreader_device->release = (void (*)(struct device *))kfree;
rc = device_register(monreader_device);
if (rc) {
- kfree(monreader_device);
+ put_device(monreader_device);
goto out_driver;
}
Index: quilt-2.6/drivers/s390/char/vmlogrdr.c
===================================================================
--- quilt-2.6.orig/drivers/s390/char/vmlogrdr.c
+++ quilt-2.6/drivers/s390/char/vmlogrdr.c
@@ -765,8 +765,10 @@ static int vmlogrdr_register_device(stru
} else
return -ENOMEM;
ret = device_register(dev);
- if (ret)
+ if (ret) {
+ put_device(dev);
return ret;
+ }
ret = sysfs_create_group(&dev->kobj, &vmlogrdr_attr_group);
if (ret) {
Index: quilt-2.6/drivers/s390/cio/chp.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/chp.c
+++ quilt-2.6/drivers/s390/cio/chp.c
@@ -417,7 +417,8 @@ int chp_new(struct chp_id chpid)
if (ret) {
CIO_MSG_EVENT(0, "Could not register chp%x.%02x: %d\n",
chpid.cssid, chpid.id, ret);
- goto out_free;
+ put_device(&chp->dev);
+ goto out;
}
ret = sysfs_create_group(&chp->dev.kobj, &chp_attr_group);
if (ret) {
Index: quilt-2.6/drivers/s390/cio/css.c
===================================================================
--- quilt-2.6.orig/drivers/s390/cio/css.c
+++ quilt-2.6/drivers/s390/cio/css.c
@@ -152,18 +152,6 @@ css_alloc_subchannel(struct subchannel_i
}
static void
-css_free_subchannel(struct subchannel *sch)
-{
- if (sch) {
- /* Reset intparm to zeroes. */
- sch->config.intparm = 0;
- cio_commit_config(sch);
- kfree(sch->lock);
- kfree(sch);
- }
-}
-
-static void
css_subchannel_release(struct device *dev)
{
struct subchannel *sch;
@@ -330,7 +318,7 @@ int css_probe_device(struct subchannel_i
return PTR_ERR(sch);
ret = css_register_subchannel(sch);
if (ret)
- css_free_subchannel(sch);
+ put_device(&sch->dev);
return ret;
}
@@ -647,7 +635,10 @@ __init_channel_subsystem(struct subchann
* not working) so we do it now. This is true e.g. for the
* console subchannel.
*/
- css_register_subchannel(sch);
+ if (css_register_subchannel(sch)) {
+ if (!cio_is_console(schid))
+ put_device(&sch->dev);
+ }
return 0;
}
@@ -923,8 +914,10 @@ init_channel_subsystem (void)
goto out_device;
}
ret = device_register(&css->pseudo_subchannel->dev);
- if (ret)
+ if (ret) {
+ put_device(&css->pseudo_subchannel->dev);
goto out_file;
+ }
}
ret = register_reboot_notifier(&css_reboot_notifier);
if (ret)
Index: quilt-2.6/drivers/s390/crypto/ap_bus.c
===================================================================
--- quilt-2.6.orig/drivers/s390/crypto/ap_bus.c
+++ quilt-2.6/drivers/s390/crypto/ap_bus.c
@@ -1114,7 +1114,7 @@ static void ap_scan_bus(struct work_stru
ap_dev->device.release = ap_device_release;
rc = device_register(&ap_dev->device);
if (rc) {
- kfree(ap_dev);
+ put_device(&ap_dev->device);
continue;
}
/* Add device attributes. */
Index: quilt-2.6/drivers/s390/net/netiucv.c
===================================================================
--- quilt-2.6.orig/drivers/s390/net/netiucv.c
+++ quilt-2.6/drivers/s390/net/netiucv.c
@@ -1839,9 +1839,10 @@ static int netiucv_register_device(struc
return -ENOMEM;
ret = device_register(dev);
-
- if (ret)
+ if (ret) {
+ put_device(dev);
return ret;
+ }
ret = netiucv_add_files(dev);
if (ret)
goto out_unreg;
@@ -2226,8 +2227,10 @@ static int __init netiucv_init(void)
netiucv_dev->release = (void (*)(struct device *))kfree;
netiucv_dev->driver = &netiucv_driver;
rc = device_register(netiucv_dev);
- if (rc)
+ if (rc) {
+ put_device(netiucv_dev);
goto out_driver;
+ }
netiucv_banner();
return rc;
Index: quilt-2.6/drivers/s390/net/smsgiucv.c
===================================================================
--- quilt-2.6.orig/drivers/s390/net/smsgiucv.c
+++ quilt-2.6/drivers/s390/net/smsgiucv.c
@@ -219,13 +219,13 @@ static int __init smsg_init(void)
smsg_dev->driver = &smsg_driver;
rc = device_register(smsg_dev);
if (rc)
- goto out_free_dev;
+ goto out_put;
cpcmd("SET SMSG IUCV", NULL, 0, NULL);
return 0;
-out_free_dev:
- kfree(smsg_dev);
+out_put:
+ put_device(smsg_dev);
out_free_path:
iucv_path_free(smsg_path);
smsg_path = NULL;
Index: quilt-2.6/drivers/s390/scsi/zfcp_aux.c
===================================================================
--- quilt-2.6.orig/drivers/s390/scsi/zfcp_aux.c
+++ quilt-2.6/drivers/s390/scsi/zfcp_aux.c
@@ -306,8 +306,10 @@ struct zfcp_unit *zfcp_unit_enqueue(stru
}
read_unlock_irq(&zfcp_data.config_lock);
- if (device_register(&unit->sysfs_device))
- goto err_out_free;
+ if (device_register(&unit->sysfs_device)) {
+ put_device(&unit->sysfs_device);
+ return ERR_PTR(-EINVAL);
+ }
if (sysfs_create_group(&unit->sysfs_device.kobj,
&zfcp_sysfs_unit_attrs)) {
@@ -637,8 +639,10 @@ struct zfcp_port *zfcp_port_enqueue(stru
}
read_unlock_irq(&zfcp_data.config_lock);
- if (device_register(&port->sysfs_device))
- goto err_out_free;
+ if (device_register(&port->sysfs_device)) {
+ put_device(&port->sysfs_device);
+ goto err_out;
+ }
retval = sysfs_create_group(&port->sysfs_device.kobj,
&zfcp_sysfs_port_attrs);
--
blue skies,
Martin.
"Reality continues to ruin my life." - Calvin.
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