diff options
| author | Takashi Iwai <tiwai@suse.de> | 2014-08-19 17:37:55 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-08-19 18:16:08 +0200 |
| commit | dd5f5006d1035547559c8a90781a7e249787a7a2 (patch) | |
| tree | f8dc50c8a83d4d97a210bd306fee3fb73f1515db | |
| parent | Linux 3.17-rc1 (diff) | |
| download | linux-dd5f5006d1035547559c8a90781a7e249787a7a2.tar.xz linux-dd5f5006d1035547559c8a90781a7e249787a7a2.zip | |
usbcore: Fix wrong device in an error message in hub_port_connect()
The commit [5ee0f803cc3a: usbcore: don't log on consecutive debounce
failures of the same port] added the check of the reliable port, but
it also replaced the device argument to dev_err() wrongly, which leads
to a NULL dereference.
This patch restores the right device, port_dev->dev. Also, since
dev_err() itself shows the port number, reduce the port number shown
in the error message, essentially reverting to the state before the
commit 5ee0f803cc3a.
[The fix suggested by Hannes, and the error message cleanup suggested
by Alan Stern]
Fixes: 5ee0f803cc3a ('usbcore: don't log on consecutive debounce failures of the same port')
Reported-by: Hannes Reinecke <hare@suse.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/usb/core/hub.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 8a4dcbc7a75f..e0eaeb8697bb 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -4631,9 +4631,7 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus, if (status != -ENODEV && port1 != unreliable_port && printk_ratelimit()) - dev_err(&udev->dev, "connect-debounce failed, port %d disabled\n", - port1); - + dev_err(&port_dev->dev, "connect-debounce failed\n"); portstatus &= ~USB_PORT_STAT_CONNECTION; unreliable_port = port1; } else { |