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Subject[PATCH] USB: wusbcore: fix usb_dev leaks
Date
cbaf_probe() does cbaf->usb_dev = usb_get_dev(interface_to_usbdev(iface)),
but there is no usb_put_dev() anywhere in cbaf.

The patch adds usb_put_dev() to cbaf_disconnect() and to an error path in cbaf_probe().
Also it adds missed usb_put_intf(iface) to the error path.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
---
drivers/usb/wusbcore/cbaf.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/usb/wusbcore/cbaf.c b/drivers/usb/wusbcore/cbaf.c
index 7f78f30..4035004 100644
--- a/drivers/usb/wusbcore/cbaf.c
+++ b/drivers/usb/wusbcore/cbaf.c
@@ -623,6 +623,8 @@ static int cbaf_probe(struct usb_interface *iface,

error_create_group:
error_check:
+ usb_put_intf(iface);
+ usb_put_dev(cbaf->usb_dev);
kfree(cbaf->buffer);
error_kmalloc_buffer:
kfree(cbaf);
@@ -637,6 +639,7 @@ static void cbaf_disconnect(struct usb_interface *iface)
sysfs_remove_group(&dev->kobj, &cbaf_dev_attr_group);
usb_set_intfdata(iface, NULL);
usb_put_intf(iface);
+ usb_put_dev(cbaf->usb_dev);
kfree(cbaf->buffer);
/* paranoia: clean up crypto keys */
kzfree(cbaf);
--
1.8.1.2


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