Commit 7370ed6b authored Dec 07, 2009 by Yi Li Committed by Mike Frysinger Oct 18, 2010

spi/bfin_spi: use nosync when disabling the IRQ from the IRQ handler



Using disable_irq() on the IRQ whose handler we are currently executing in
can easily lead to a hang.  So use the nosync variant here.

Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>

parent 9677b0de

drivers/spi/spi_bfin5xx.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -448,7 +448,7 @@ static irqreturn_t bfin_spi_pio_irq_handler(int irq, void *dev_id)
		/* Move to next transfer */
		msg->state = bfin_spi_next_transfer(drv_data);

		disable_irq(drv_data->spi_irq);
		disable_irq_nosync(drv_data->spi_irq);

		/* Schedule transfer tasklet */
		tasklet_schedule(&drv_data->pump_transfers);