[PATCH 1/3] usbnet: clear OPEN flag in failure path
From: Ming Lei <hidden>
Date: 2012-06-13 04:20:15
Subsystem:
networking drivers, the rest, usb "usbnet" driver framework, usb networking drivers · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Oliver Neukum
Without clearing OPEN flag in failure path, runtime or system resume may submit interrupt/rx URB and start tx queue mistakenly on a interface in DOWN state. Cc: stable-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Signed-off-by: Ming Lei <redacted> --- drivers/net/usb/usbnet.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c
index ac2e493..f06cf9b 100644
--- a/drivers/net/usb/usbnet.c
+++ b/drivers/net/usb/usbnet.c@@ -793,11 +793,13 @@ int usbnet_open (struct net_device *net) if (info->manage_power) { retval = info->manage_power(dev, 1); if (retval < 0) - goto done; + goto done_manage_power_error; usb_autopm_put_interface(dev->intf); } return retval; +done_manage_power_error: + clear_bit(EVENT_DEV_OPEN, &dev->flags); done: usb_autopm_put_interface(dev->intf); done_nopm:
--
1.7.9.5
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