From ed99f0141b6a7ac0d197c28b814e67d85ac42452 Mon Sep 17 00:00:00 2001 From: Jia-Ju Bai Date: Thu, 1 Jun 2017 11:43:35 +0800 Subject: [PATCH] rts5208: Fix a sleep-in-atomic bug in rtsx_exclusive_enter_ss The driver may sleep under a spin lock, and the function call path is: rtsx_exclusive_enter_ss (acquire the lock by spin_lock) rtsx_enter_ss rtsx_power_off_card sd_cleanup_work sd_stop_seq_mode sd_switch_clock sd_ddr_tuning sd_ddr_pre_tuning_tx sd_change_phase wait_timeout schedule_timeout --> may sleep To fix it, "wait_timeout" is replaced with mdelay in sd_change_phase. Signed-off-by: Jia-Ju Bai Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rts5208/sd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c index aa144542e4e3..c2eb072cbe1d 100644 --- a/drivers/staging/rts5208/sd.c +++ b/drivers/staging/rts5208/sd.c @@ -1057,7 +1057,7 @@ static int sd_change_phase(struct rtsx_chip *chip, u8 sample_point, u8 tune_dir) rtsx_write_register(chip, SD_DCMPS_CTL, DCMPS_CHANGE, 0); rtsx_write_register(chip, SD_VP_CTL, PHASE_CHANGE, 0); - wait_timeout(10); + mdelay(10); sd_reset_dcm(chip, tune_dir); return STATUS_FAIL; } -- 2.45.2