> -----Original Message----- > From: Andreas Mohr [mailto:[email protected]] > Sent: Thursday, February 14, 2013 10:44 PM > To: Zhang, Rui > Cc: [email protected] > Subject: [ASAP] thermal_sys.c NULL ptr deref patch likely incomplete > Importance: High > > Hi, > > I just had a > > # cat /sys/class/thermal/thermal_zone0/policy > (null) > > > When looking at the code (on my -rc7), I saw: > > drivers/thermal/thermal_sys.c > > static ssize_t > policy_show(struct device *dev, struct device_attribute *devattr, char > *buf) > { > struct thermal_zone_device *tz = to_thermal_zone(dev); > > return sprintf(buf, "%s\n", tz->governor->name); > } > > > (not sure though why I manage to get a "(null)" rather than a crash > due to the dereferencing prior to output - possibly since I do have a > valid governor allocated yet then only its name field is null?) > Hmm,
Please apply the debug patch and see what you can get here. Thanks, rui > > Seems we are missing a critical (and -rc-relevant) patch here > (and perhaps at other locations in this file, too, given that > this one was missed last time?). > > Currently trying to get acerhdf operation into a working state > (and having some trouble with it - didn't know that I probably need > some > governor setup which seems to have just been available on my last setup, > or so) > > Thanks, > > Andreas Mohr
acerhdf-debug-2.patch
Description: acerhdf-debug-2.patch
