> -----Original Message----- > From: Greg KH [mailto:greg@xxxxxxxxx] > Sent: Wednesday, April 26, 2006 11:48 AM > To: Vishal Sharda > Cc: kernelnewbies@xxxxxxxxxxxx > Subject: Re: function "class_device_add" in inux26/drivers/base/class.c > > On Wed, Apr 26, 2006 at 11:23:39AM +0530, Vishal Sharda wrote: > > > > In the function "class_device_add" in inux26/drivers/base/class.c > > There is one statement: > > > > parent = class_get(class_dev->class); > > > > My question is that can return value of class_get i.e. value of parent > > be NULL? > > > > I tried to track it down and couldn't find the instance where it can be > > NULL. > > If class_dev->class == NULL, then class_get() will also return NULL. > Yes, that is also true. Okay, so now question is whether class_dev->class Can be NULL? And I repeat that "I tried to track it down and couldn't find the instance where it can be NULL." In what conditions it can be NULL? > > **************** CAUTION - Disclaimer ***************** > > This e-mail contains PRIVILEGED AND CONFIDENTIAL INFORMATION intended > > solely for the use of the addressee(s). If you are not the intended > > recipient, please notify the sender by e-mail and delete the original > > message. Further, you are not to copy, disclose, or distribute this > > e-mail or its contents to any other person and any such actions are > > unlawful. This e-mail may contain viruses. Infosys has taken every > > reasonable precaution to minimize this risk, but is not liable for any > > damage you may sustain as a result of any virus in this e-mail. You > > should carry out your own virus checks before opening the e-mail or > > attachment. Infosys reserves the right to monitor and review the > > content of all messages sent to or from this e-mail address. Messages > > sent to or from this e-mail address may be stored on the Infosys > > e-mail system. > > ***INFOSYS******** End of Disclaimer ********INFOSYS*** > > Oops, you just posted this in public, so it sure isn't "CONFIDENTIAL" > anymore... > > greg k-h My email client automatically sends this since this is my office ID :) Regards, Vishal. -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
