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tty: serial: sh-sci: Fix sleeping in atomic context

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Fix sleeping in atomic context warning as reported by the Smatch static
checker tool by replacing disable_irq->disable_irq_nosync.

Reported by: Dan Carpenter <dan.carpenter@linaro.org>

Fixes: 8749061be1 ("tty: serial: sh-sci: Add RZ/G2L SCIFA DMA tx support")
Cc: stable@kernel.org
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230704154818.406913-1-biju.das.jz@bp.renesas.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Biju Das
2023-07-04 16:48:18 +01:00
committed by Greg Kroah-Hartman
parent 9b8fef6345
commit 57c984f6fe
1 changed files with 1 additions and 1 deletions
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drivers/tty/serial/sh-sci.c
+1 -1
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@@ -590,7 +590,7 @@ static void sci_start_tx(struct uart_port *port)
dma_submit_error(s->cookie_tx)) {
if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE)
/* Switch irq from SCIF to DMA */
disable_irq(s->irqs[SCIx_TXI_IRQ]);
disable_irq_nosync(s->irqs[SCIx_TXI_IRQ]);
s->cookie_tx = 0;
schedule_work(&s->work_tx);