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-rw-r--r--drivers/video/console/fbcon.c11
-rw-r--r--drivers/video/fbmem.c2
2 files changed, 10 insertions, 3 deletions
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 2aef9ca..2e2d959 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -842,6 +842,8 @@ static void con2fb_init_display(struct vc_data *vc, struct fb_info *info,
*
* Maps a virtual console @unit to a frame buffer device
* @newidx.
+ *
+ * This should be called with the console lock held.
*/
static int set_con2fb_map(int unit, int newidx, int user)
{
@@ -859,7 +861,7 @@ static int set_con2fb_map(int unit, int newidx, int user)
if (!search_for_mapped_con() || !con_is_bound(&fb_con)) {
info_idx = newidx;
- return fbcon_takeover(0);
+ return do_fbcon_takeover(0);
}
if (oldidx != -1)
@@ -867,7 +869,6 @@ static int set_con2fb_map(int unit, int newidx, int user)
found = search_fb_in_map(newidx);
- console_lock();
con2fb_map[unit] = newidx;
if (!err && !found)
err = con2fb_acquire_newinfo(vc, info, unit, oldidx);
@@ -894,7 +895,6 @@ static int set_con2fb_map(int unit, int newidx, int user)
if (!search_fb_in_map(info_idx))
info_idx = newidx;
- console_unlock();
return err;
}
@@ -3019,6 +3019,7 @@ static inline int fbcon_unbind(void)
}
#endif /* CONFIG_VT_HW_CONSOLE_BINDING */
+/* called with console_lock held */
static int fbcon_fb_unbind(int idx)
{
int i, new_idx = -1, ret = 0;
@@ -3045,6 +3046,7 @@ static int fbcon_fb_unbind(int idx)
return ret;
}
+/* called with console_lock held */
static int fbcon_fb_unregistered(struct fb_info *info)
{
int i, idx;
@@ -3082,6 +3084,7 @@ static int fbcon_fb_unregistered(struct fb_info *info)
return 0;
}
+/* called with console_lock held */
static void fbcon_remap_all(int idx)
{
int i;
@@ -3126,6 +3129,7 @@ static inline void fbcon_select_primary(struct fb_info *info)
}
#endif /* CONFIG_FRAMEBUFFER_DETECT_PRIMARY */
+/* called with console_lock held */
static int fbcon_fb_registered(struct fb_info *info)
{
int ret = 0, i, idx;
@@ -3278,6 +3282,7 @@ static int fbcon_event_notify(struct notifier_block *self,
ret = fbcon_fb_unregistered(info);
break;
case FB_EVENT_SET_CONSOLE_MAP:
+ /* called with console lock held */
con2fb = event->data;
ret = set_con2fb_map(con2fb->console - 1,
con2fb->framebuffer, 1);
diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 070b9a1..dc61c12 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1177,8 +1177,10 @@ static long do_fb_ioctl(struct fb_info *info, unsigned int cmd,
event.data = &con2fb;
if (!lock_fb_info(info))
return -ENODEV;
+ console_lock();
event.info = info;
ret = fb_notifier_call_chain(FB_EVENT_SET_CONSOLE_MAP, &event);
+ console_unlock();
unlock_fb_info(info);
break;
case FBIOBLANK:
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