Re: patch usb-iowarrior.patch added to gregkh-2.6 tree
Oliver Neukum <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
Am Freitag, 16. Februar 2007 09:41 schrieb Samuel Ortiz: > One stupid question: Suppose we're in iowarrior_read(), got a pointer on > private_data, but haven't taken the mutex yet. iowarrior_release() is > called, locks the mutex, decrements the opened counter to 0, and then > call iowarrior_delete(). iowarrior_read() resumes, and tries to grab > dev->mutex, but at that point dev is NULL, and we oops. How is that case > handled ? How do you close a file you are reading from? In a threaded task you can call close and read simultaneously, but the release method is called only when the last thread closes the fd. Regards Oliver ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys-and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel