No user pointers for sysctls anymore.
Fixes: 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler")
Reported-by: build test robot <lkp@intel.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 }
 
 static int cdrom_sysctl_info(struct ctl_table *ctl, int write,
-                           void __user *buffer, size_t *lenp, loff_t *ppos)
+                           void *buffer, size_t *lenp, loff_t *ppos)
 {
        int pos;
        char *info = cdrom_sysctl_settings.info;