于 2013年01月21日 19:55, Jan Beulich 写道: >>>> On 21.01.13 at 08:26, jianhai luan wrote: >> +static void notify_front_arping(struct xenbus_device *dev) >> +{ >> + int err; >> + >> + if (dev->state != XenbusStateConnected) >> + return; >> + >> + err = xenbus_printf(XBT_NIL, dev->nodename, "state", "%d", dev->state); >> + if (err) { >> + pr_fmt("Error writing the state"); > What's this? pr_fmt() alone makes no sense at all, and I'd be > pretty surprised if the compiler didn't warn about this construct. > > Further, you probably want to say "re-writing" and include the > error code in the message. And of course you want a \n at the > end. > > Finally - no need for the braces ... > >> + } >> + >> + return; > ... nor this "return". > >> +} Sorry for above details, and thank you for notifying. > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xen.org > http://lists.xen.org/xen-devel Thanks, Jason