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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-23 08:20:44 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-02-23 08:21:03 -0800 |
| commit | c69263c66e5b2a5d0c7e5a41c189b1846ae1de92 (patch) | |
| tree | 81c6cf0f5b3b05739e2e73b0118077d9dd245182 /include/linux/usb/serial.h | |
| parent | 45196cee28a5bcfb6ddbe2bffa4270cbed66ae4b (diff) | |
| parent | 5407a3c3d942e75d4d123d213fd692bce5acc961 (diff) | |
Merge branch 'usb-3.3-rc4' into usb-next
This is to pull in the xhci changes and the other fixes and device id
updates that were done in Linus's tree.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/usb/serial.h')
| -rw-r--r-- | include/linux/usb/serial.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h index 4267a9c717ba..10cb74d2ad1d 100644 --- a/include/linux/usb/serial.h +++ b/include/linux/usb/serial.h @@ -389,5 +389,20 @@ do { \ printk(KERN_DEBUG "%s: " format "\n", __FILE__, ##arg); \ } while (0) +/* + * Macro for reporting errors in write path to avoid inifinite loop + * when port is used as a console. + */ +#define dev_err_console(usport, fmt, ...) \ +do { \ + static bool __print_once; \ + struct usb_serial_port *__port = (usport); \ + \ + if (!__port->port.console || !__print_once) { \ + __print_once = true; \ + dev_err(&__port->dev, fmt, ##__VA_ARGS__); \ + } \ +} while (0) + #endif /* __LINUX_USB_SERIAL_H */ |