[PATCH 4.16 01/55] 8139too: Use disable_irq_nosync() in rtl8139_poll_controller()

Greg Kroah-Hartman
2018-05-18T08:16:49Z

From: Ingo Molnar <mingo@elte.hu>

[ Upstream commit af3e0fcf78879f718c5f73df0814951bd7057d34 ]

Use disable_irq_nosync() instead of disable_irq() as this might be
called in atomic context with netpoll.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/net/ethernet/realtek/8139too.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/net/ethernet/realtek/8139too.c
+++ b/drivers/net/ethernet/realtek/8139too.c
@@ -2224,7 +2224,7 @@ static void rtl8139_poll_controller(stru
struct rtl8139_private *tp = netdev_priv(dev);
const int irq = tp->pci_dev->irq;

- disable_irq(irq);
+ disable_irq_nosync(irq);
rtl8139_interrupt(irq, dev);
enable_irq(irq);
}