From: Florian Tobias Schandinat Date: Sat, 17 Apr 2010 19:44:56 +0000 (+0000) Subject: viafb: fix proc entry removal X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=2fed547c0298e1465d62b34a75a7b76353fee7d3;p=linux-beck.git viafb: fix proc entry removal viafb: fix proc entry removal Trying to remove unregistered proc entries became painful and is useless anyway. So remove the removal of an entry that was never registered and duplicate the logic for one which is added conditionally. Additionally move the removal above releasing fb_info as we still need the information. This prevents tainting the kernel by the procfs warn on and avoiding access to already freed memory is probably also a good idea. Signed-off-by: Florian Tobias Schandinat --- diff --git a/drivers/video/via/viafbdev.c b/drivers/video/via/viafbdev.c index e94f913f87be..51e9106138ce 100644 --- a/drivers/video/via/viafbdev.c +++ b/drivers/video/via/viafbdev.c @@ -1702,13 +1702,16 @@ static void viafb_init_proc(struct proc_dir_entry **viafb_entry) } static void viafb_remove_proc(struct proc_dir_entry *viafb_entry) { - /* no problem if it was not registered */ + struct chip_information *chip_info = &viaparinfo->shared->chip_info; + remove_proc_entry("dvp0", viafb_entry);/* parent dir */ remove_proc_entry("dvp1", viafb_entry); remove_proc_entry("dfph", viafb_entry); remove_proc_entry("dfpl", viafb_entry); - remove_proc_entry("vt1636", viafb_entry); - remove_proc_entry("vt1625", viafb_entry); + if (chip_info->lvds_chip_info.lvds_chip_name == VT1636_LVDS + || chip_info->lvds_chip_info2.lvds_chip_name == VT1636_LVDS) + remove_proc_entry("vt1636", viafb_entry); + remove_proc_entry("viafb", NULL); } @@ -1967,12 +1970,10 @@ void __devexit via_fb_pci_remove(struct pci_dev *pdev) unregister_framebuffer(viafbinfo); if (viafb_dual_fb) unregister_framebuffer(viafbinfo1); - + viafb_remove_proc(viaparinfo->shared->proc_entry); framebuffer_release(viafbinfo); if (viafb_dual_fb) framebuffer_release(viafbinfo1); - - viafb_remove_proc(viaparinfo->shared->proc_entry); } #ifndef MODULE