diff mbox series

[net,v3,2/2] net: ravb: Fix possible hang if RIS2_QFF1 happen

Message ID 20230124000211.1426624-3-yoshihiro.shimoda.uh@renesas.com (mailing list archive)
State Mainlined
Commit f3c07758c9007a6bfff5290d9e19d3c41930c897
Delegated to: Geert Uytterhoeven
Headers show
Series net: ravb: Fix potential issues | expand

Commit Message

Yoshihiro Shimoda Jan. 24, 2023, 12:02 a.m. UTC 
Since this driver enables the interrupt by RIC2_QFE1, this driver
should clear the interrupt flag if it happens. Otherwise, the interrupt
causes to hang the system.

Note that this also fix a minor coding style (a comment indentation)
around the fixed code.

Fixes: c156633f1353 ("Renesas Ethernet AVB driver proper")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
---
 drivers/net/ethernet/renesas/ravb_main.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 3f61100c02f4..0f54849a3823 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -1101,14 +1101,14 @@  static void ravb_error_interrupt(struct net_device *ndev)
 	ravb_write(ndev, ~(EIS_QFS | EIS_RESERVED), EIS);
 	if (eis & EIS_QFS) {
 		ris2 = ravb_read(ndev, RIS2);
-		ravb_write(ndev, ~(RIS2_QFF0 | RIS2_RFFF | RIS2_RESERVED),
+		ravb_write(ndev, ~(RIS2_QFF0 | RIS2_QFF1 | RIS2_RFFF | RIS2_RESERVED),
 			   RIS2);
 
 		/* Receive Descriptor Empty int */
 		if (ris2 & RIS2_QFF0)
 			priv->stats[RAVB_BE].rx_over_errors++;
 
-		    /* Receive Descriptor Empty int */
+		/* Receive Descriptor Empty int */
 		if (ris2 & RIS2_QFF1)
 			priv->stats[RAVB_NC].rx_over_errors++;