[PATCH 4.4 27/44] can: peak_usb: pcan_usb_fd_decode_status(): fix back to ERROR_ACTIVE state notification

[Greg Kroah-Hartman]

From: Stephane Grosjean <s.grosjean@xxxxxxxxxxxxxxx>

commit 3d031abc7e7249573148871180c28ecedb5e27df upstream.

This corrects the lack of notification of a return to ERROR_ACTIVE
state for USB - CANFD devices from PEAK-System.

Fixes: 0a25e1f4f185 ("can: peak_usb: add support for PEAK new CANFD USB adapters")
Link: https://lore.kernel.org/all/20210929142111.55757-1-s.grosjean@xxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Stephane Grosjean <s.grosjean@xxxxxxxxxxxxxxx>
Signed-off-by: Marc Kleine-Budde <mkl@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 drivers/net/can/usb/peak_usb/pcan_usb_fd.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

--- a/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_fd.c
@@ -559,11 +559,10 @@ static int pcan_usb_fd_decode_status(str
 	} else if (sm->channel_p_w_b & PUCAN_BUS_WARNING) {
 		new_state = CAN_STATE_ERROR_WARNING;
 	} else {
-		/* no error bit (so, no error skb, back to active state) */
-		dev->can.state = CAN_STATE_ERROR_ACTIVE;
+		/* back to (or still in) ERROR_ACTIVE state */
+		new_state = CAN_STATE_ERROR_ACTIVE;
 		pdev->bec.txerr = 0;
 		pdev->bec.rxerr = 0;
-		return 0;
 	}
 
 	/* state hasn't changed */