tty: bfin-sport-uart: Rx interrupt is not called always with irq disa…

…bled. Replace local_irq_disable by local_irq_save. Signed-off-by: Sonic Zhang <[email protected]> Acked-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>
goeke · Dec 10, 2011 · 07143ea · 07143ea
1 parent f5b6940
commit 07143ea
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/drivers/tty/serial/bfin_sport_uart.h b/drivers/tty/serial/bfin_sport_uart.h
@@ -45,11 +45,12 @@
 #define SPORT_GET_RX32(sport) \
 ({ \
 	unsigned int __ret; \
+	unsigned long flags; \
 	if (ANOMALY_05000473) \
-		local_irq_disable(); \
+		local_irq_save(flags); \
 	__ret = bfin_read32((sport)->port.membase + OFFSET_RX); \
 	if (ANOMALY_05000473) \
-		local_irq_enable(); \
+		local_irq_restore(flags); \
 	__ret; \
 })
 #define SPORT_GET_RCR1(sport)		bfin_read16(((sport)->port.membase + OFFSET_RCR1))