#include <linux/fb.h>
#include <linux/io.h>
#include <linux/mutex.h>
+#include <linux/slab.h>
#include <video/edid.h>
#include <video/uvesafb.h>
#ifdef CONFIG_X86
* find the kernel part of the task struct, copy the registers and
* the buffer contents and then complete the task.
*/
-static void uvesafb_cn_callback(struct cn_msg *msg)
+static void uvesafb_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
{
struct uvesafb_task *utask;
struct uvesafb_ktask *task;
+ if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN))
+ return;
+
if (msg->seq >= UVESAFB_TASKS_MAX)
return;
return 0;
}
-static void uvesafb_save_state(struct fb_info *info)
-{
- struct uvesafb_par *par = info->par;
-
- if (par->vbe_state_saved)
- kfree(par->vbe_state_saved);
-
- par->vbe_state_saved = uvesafb_vbe_state_save(par);
-}
-
-static void uvesafb_restore_state(struct fb_info *info)
-{
- struct uvesafb_par *par = info->par;
-
- uvesafb_vbe_state_restore(par, par->vbe_state_saved);
-}
-
static struct fb_ops uvesafb_ops = {
.owner = THIS_MODULE,
.fb_open = uvesafb_open,
.fb_imageblit = cfb_imageblit,
.fb_check_var = uvesafb_check_var,
.fb_set_par = uvesafb_set_par,
- .fb_save_state = uvesafb_save_state,
- .fb_restore_state = uvesafb_restore_state,
};
static void __devinit uvesafb_init_info(struct fb_info *info,
info->fix.ypanstep = par->ypan ? 1 : 0;
info->fix.ywrapstep = (par->ypan > 1) ? 1 : 0;
- /*
- * If we were unable to get the state buffer size, disable
- * functions for saving and restoring the hardware state.
- */
- if (par->vbe_state_size == 0) {
- info->fbops->fb_save_state = NULL;
- info->fbops->fb_restore_state = NULL;
- }
-
/* Disable blanking if the user requested so. */
if (!blank)
info->fbops->fb_blank = NULL;