On Thu, Jan 02, 2020 at 11:24:09AM -0500, Marcelo Diop-Gonzalez wrote: > Hi, I noticed couple minor bugs while looking around in > drivers/staging/vc04_services/*: > > 1. When opening "/dev/vchiq", vchiq_debugfs_add_instance() adds a debugfs > directory named after the tgid of the process who opened the file. But > there will be collisions if you try opening it multiple times from the same > process. Odd, but shouldn't cause any problems as no code paths should care if debugfs works or not, it's only for debugging :) > 2. In vchiq_dump_platform_instances(), called from vchiq_read(), each > instance's ->mark member is used to track whether it's been printed > already, but two concurrent readers could stomp on each other (causing one > of them to see fewer instances than actually exist), since a field in the > vchiq_instance struct itself is being modified with no > locking/synchronization > > I didn't want to send any patches out since I'm not sure if/how people > would want to fix these, but thought I'd point them out. Patches are always best, please feel free to submit to help resolve these. thanks, greg k-h _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
