cycle_kernel_lock() was added during the big BKL pushdown. It should ensure the serializiation against driver init code. In this case there is nothing to serialize. Remove it. Signed-off-by: Thomas Gleixner Cc: Geert Uytterhoeven Cc: Dmitry Torokhov --- drivers/input/misc/hp_sdc_rtc.c | 2 -- 1 file changed, 2 deletions(-) Index: linux-2.6-tip/drivers/input/misc/hp_sdc_rtc.c =================================================================== --- linux-2.6-tip.orig/drivers/input/misc/hp_sdc_rtc.c +++ linux-2.6-tip/drivers/input/misc/hp_sdc_rtc.c @@ -35,7 +35,6 @@ #include #include -#include #include #include #include @@ -409,7 +408,6 @@ static unsigned int hp_sdc_rtc_poll(stru static int hp_sdc_rtc_open(struct inode *inode, struct file *file) { - cycle_kernel_lock(); return 0; }