Re: Char device question: cdev_del()
Rajat Jain <[email protected]> Fri, 18 Dec 2015 11:41:28 -0800
| Newsgroups | org.kernel.vger.linux-newbie |
|---|---|
| Message-ID | <CAA93t1oBCT=MhViFV1GR9myb4K9fdeYWU=u-8a2euws7SDYLiw@mail.gmail.com> |
On Fri, Dec 18, 2015 at 11:40 AM, Rajat Jain <[email protected]> wrote: > Hi, > > What happens if the driver calls cdev_del() while one of the character > device is being used (i.e. for. e.g. some process is in the middle of > the ioctl call for that character device). > > Does the cdev_del() wait for that call to get completed? Is the driver > guaranteed that once the cdev_del() returns, none of the driver > character device operations are in use? > > Thanks, > > Rajat -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs