Re: fbmem.c : FBIOGETCMAP
From: James Simmons <hidden>
Date: 2003-01-05 20:53:12
It needs a copy_to_user too to work. Probably doesn't need the copy_from_user. Is the right fix? case FBIOGETCMAP: fb_copy_cmap(&info->cmap, &cmap, 0); if (copy_to_user((void *) arg, &cmap, sizeof(cmap))) return -EFAULT; return 0;
Oops. I see the problem. It should be fb_copy_cmap(&info->cmap, &cmap, 2); This tells it to use copy_to_user. I see a few mistakes here. Fixing... There are several bugs here. I have to cleanup it up. FOr example in fb_copy_cmap there is test for a EFAULT for any copy_* function. This is just broken. It has been broken for a long time. Will fix. Will you test my patch as soon as it is ready? ------------------------------------------------------- This sf.net email is sponsored by:ThinkGeek Welcome to geek heaven. http://thinkgeek.com/sf