can: xilinx_can: Add check for NAPI Poll function

Add check for NAPI poll function to avoid enabling interrupts with out completing the NAPI call. Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Xilinx · Sep 22, 2021 · 1e9116a · 1e9116a
1 parent bbb327d
commit 1e9116a
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
@@ -1219,10 +1219,11 @@ static int xcan_rx_poll(struct napi_struct *napi, int quota)
 	}
 
 	if (work_done < quota) {
-		napi_complete_done(napi, work_done);
-		ier = priv->read_reg(priv, XCAN_IER_OFFSET);
-		ier |= xcan_rx_int_mask(priv);
-		priv->write_reg(priv, XCAN_IER_OFFSET, ier);
+		if (napi_complete_done(napi, work_done)) {
+			ier = priv->read_reg(priv, XCAN_IER_OFFSET);
+			ier |= xcan_rx_int_mask(priv);
+			priv->write_reg(priv, XCAN_IER_OFFSET, ier);
+		}
 	}
 	return work_done;
 }