diff options
Diffstat (limited to 'arch/powerpc/kernel/traps.c')
| -rw-r--r-- | arch/powerpc/kernel/traps.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c index 91a6e04d974..52f5659534f 100644 --- a/arch/powerpc/kernel/traps.c +++ b/arch/powerpc/kernel/traps.c @@ -32,6 +32,7 @@ #include <linux/delay.h> #include <linux/kprobes.h> #include <linux/kexec.h> +#include <linux/backlight.h> #include <asm/kdebug.h> #include <asm/pgtable.h> @@ -105,10 +106,18 @@ int die(const char *str, struct pt_regs *regs, long err) spin_lock_irq(&die_lock); bust_spinlocks(1); #ifdef CONFIG_PMAC_BACKLIGHT - if (machine_is(powermac)) { - set_backlight_enable(1); - set_backlight_level(BACKLIGHT_MAX); + mutex_lock(&pmac_backlight_mutex); + if (machine_is(powermac) && pmac_backlight) { + struct backlight_properties *props; + + down(&pmac_backlight->sem); + props = pmac_backlight->props; + props->brightness = props->max_brightness; + props->power = FB_BLANK_UNBLANK; + props->update_status(pmac_backlight); + up(&pmac_backlight->sem); } + mutex_unlock(&pmac_backlight_mutex); #endif printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); #ifdef CONFIG_PREEMPT |