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

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 <[email protected]>

Fixes: 8749061 ("tty: serial: sh-sci: Add RZ/G2L SCIFA DMA tx support")
Cc: [email protected]
Signed-off-by: Biju Das <[email protected]>
Reviewed-by: Geert Uytterhoeven <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Greg Kroah-Hartman <[email protected]>

Author: bijudas

drivers/tty/serial/sh-sci.c

@@ -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);