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authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-01 21:01:10 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-04-01 21:01:10 +0200
commitef99f3aee9641d10a7c80d4803d2f0f004c797ca (patch)
tree83f14ccef66db48fc4178bd8b973462006de86b8 /drivers/usb/class
parentARM: PL011: Add support for Rx DMA buffer polling. (diff)
parentLinux 3.9-rc5 (diff)
downloadlinux-ef99f3aee9641d10a7c80d4803d2f0f004c797ca.tar.xz
linux-ef99f3aee9641d10a7c80d4803d2f0f004c797ca.zip
Merge 3.9-rc5 into tty-next
We need the fixes here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb/class')
-rw-r--r--drivers/usb/class/cdc-acm.c22
1 files changed, 19 insertions, 3 deletions
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 27a18743275e..c77f7ae48f1c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -582,7 +582,6 @@ static void acm_port_destruct(struct tty_port *port)
dev_dbg(&acm->control->dev, "%s\n", __func__);
- tty_unregister_device(acm_tty_driver, acm->minor);
acm_release_minor(acm);
usb_put_intf(acm->control);
kfree(acm->country_codes);
@@ -966,6 +965,8 @@ static int acm_probe(struct usb_interface *intf,
int num_rx_buf;
int i;
int combined_interfaces = 0;
+ struct device *tty_dev;
+ int rv = -ENOMEM;
/* normal quirks */
quirks = (unsigned long)id->driver_info;
@@ -1328,11 +1329,24 @@ skip_countries:
usb_set_intfdata(data_interface, acm);
usb_get_intf(control_interface);
- tty_port_register_device(&acm->port, acm_tty_driver, minor,
+ tty_dev = tty_port_register_device(&acm->port, acm_tty_driver, minor,
&control_interface->dev);
+ if (IS_ERR(tty_dev)) {
+ rv = PTR_ERR(tty_dev);
+ goto alloc_fail8;
+ }
return 0;
+alloc_fail8:
+ if (acm->country_codes) {
+ device_remove_file(&acm->control->dev,
+ &dev_attr_wCountryCodes);
+ device_remove_file(&acm->control->dev,
+ &dev_attr_iCountryCodeRelDate);
+ }
+ device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities);
alloc_fail7:
+ usb_set_intfdata(intf, NULL);
for (i = 0; i < ACM_NW; i++)
usb_free_urb(acm->wb[i].urb);
alloc_fail6:
@@ -1348,7 +1362,7 @@ alloc_fail2:
acm_release_minor(acm);
kfree(acm);
alloc_fail:
- return -ENOMEM;
+ return rv;
}
static void stop_data_traffic(struct acm *acm)
@@ -1400,6 +1414,8 @@ static void acm_disconnect(struct usb_interface *intf)
stop_data_traffic(acm);
+ tty_unregister_device(acm_tty_driver, acm->minor);
+
usb_free_urb(acm->ctrlurb);
for (i = 0; i < ACM_NW; i++)
usb_free_urb(acm->wb[i].urb);