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Commit 5e38c984 authored by Aishwarya Pant's avatar Aishwarya Pant Committed by Greg Kroah-Hartman
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staging: dgnc: replace udelay with usleep_range 



Fix checkpatch warning on dgnc_cls.c: CHECK usleep_range is preferred
over udelay. udelay(t) in function cls_uart_init is within non-atomic
context and can be safely replaced by usleep_range(t, t + delta) where
delta is t (as t is between 10 and 20 microseconds).

Signed-off-by: default avatarAishwarya Pant <aishpant@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 4bc58d16

drivers/staging/dgnc/dgnc_cls.c

+1 −1
Original line number Original line Diff line number Diff line
@@ -1096,7 +1096,7 @@ static void cls_uart_init(struct channel_t *ch) 




	writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,

	writeb(UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,

	       &ch->ch_cls_uart->isr_fcr);

	       &ch->ch_cls_uart->isr_fcr);

	udelay(10);

	usleep_range(10, 20);





	ch->ch_flags |= (CH_FIFO_ENABLED | CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);

	ch->ch_flags |= (CH_FIFO_ENABLED | CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM);