From 4ba9e516573e60c471c01bb369144651f6f8d50b Mon Sep 17 00:00:00 2001 From: "Ahmed S. Darwish" Date: Thu, 26 Nov 2020 14:29:39 +0100 Subject: scsi: pm80xx: Do not sleep in atomic context hw_event_sas_phy_up() is used in hardirq/softirq context: pm8001_interrupt_handler_msix() || pm8001_interrupt_handler_intx() || pm8001_tasklet => PM8001_CHIP_DISP->isr() = pm80xx_chip_isr() => process_oq() [spin_lock_irqsave(&pm8001_ha->lock,)] => process_one_iomb() => mpi_hw_event() => hw_event_sas_phy_up() => msleep(200) Revert the msleep() back to an mdelay() to avoid sleeping in atomic context. Link: https://lore.kernel.org/r/20201126132952.2287996-2-bigeasy@linutronix.de Fixes: 4daf1ef3c681 ("scsi: pm80xx: Convert 'long' mdelay to msleep") Cc: Vikram Auradkar Cc: Jack Wang Acked-by: Jack Wang Signed-off-by: Ahmed S. Darwish Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Martin K. Petersen --- drivers/scsi/pm8001/pm80xx_hwi.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/scsi/pm8001') diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c index 69f8244539e0..6772b0924dac 100644 --- a/drivers/scsi/pm8001/pm80xx_hwi.c +++ b/drivers/scsi/pm8001/pm80xx_hwi.c @@ -3296,7 +3296,7 @@ hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb) pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr); spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags); if (pm8001_ha->flags == PM8001F_RUN_TIME) - msleep(200);/*delay a moment to wait disk to spinup*/ + mdelay(200); /* delay a moment to wait for disk to spin up */ pm8001_bytes_dmaed(pm8001_ha, phy_id); } -- cgit v1.2.3