Re: [PATCH] Fix a potential NULL pointer dereference in usbat_check_status() in drivers/usb/storage/shuttle_usbat.c
Jens Axboe <[email protected]>
| Newsgroups | gmane.linux.usb.devel,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Sep 04 2007, Simon Holm Thøgersen wrote: > tir, 04 09 2007 kl. 13:06 +0200, skrev Jens Axboe: > > On Tue, Sep 04 2007, Micah Gruber wrote: > > > This patch fixes a potential null dereference bug where we dereference us before a null check. This patch simply moves the dereferencing after the null check. > > > > > > Signed-off-by: Micah Gruber <[email protected]> > > > > Be careful with stuff like that, if you actually look at the code, a us > > == NULL doesn't seem to be possible (or usbat_flash_transport() would > > have oopsed before). > > > If that is true, then > if (!us) > return USB_STOR_TRANSPORT_ERROR; > is utterly pointless. Well that was the point I was trying to make, that test and return should be deleted instead. -- Jens Axboe ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel