From b257bc051f06607beb3004d9a1c297085e728bec Mon Sep 17 00:00:00 2001 From: Andrew Johnson Date: Fri, 16 Mar 2007 13:38:24 -0800 Subject: [PATCH] swsusp: fix suspend when console is in VT_AUTO+KD_GRAPHICS mode When the console is in VT_AUTO+KD_GRAPHICS mode, switching to the SUSPEND_CONSOLE fails, resulting in vt_waitactive() waiting indefinitely or until the task is interrupted. This patch tests if a console switch can occur in set_console() and returns early if a console switch is not possible. [akpm@linux-foundation.org: cleanup] Signed-off-by: Andrew Johnson Acked-by: Pavel Machek Cc: "Antonino A. Daplas" Cc: "Rafael J. Wysocki" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/kbd_kern.h | 2 +- include/linux/vt_kern.h | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/linux/kbd_kern.h b/include/linux/kbd_kern.h index 06c58c423fe1..506ad20c18f8 100644 --- a/include/linux/kbd_kern.h +++ b/include/linux/kbd_kern.h @@ -75,7 +75,7 @@ extern int do_poke_blanked_console; extern void (*kbd_ledfunc)(unsigned int led); -extern void set_console(int nr); +extern int set_console(int nr); extern void schedule_console_callback(void); static inline void set_leds(void) diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h index 37a1a41f5b65..e0db669998f3 100644 --- a/include/linux/vt_kern.h +++ b/include/linux/vt_kern.h @@ -83,6 +83,7 @@ void reset_vc(struct vc_data *vc); #define CON_BUF_SIZE (CONFIG_BASE_SMALL ? 256 : PAGE_SIZE) extern char con_buf[CON_BUF_SIZE]; extern struct semaphore con_buf_sem; +extern char vt_dont_switch; struct vt_spawn_console { spinlock_t lock; -- cgit v1.2.3