X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=drivers%2Fpci%2Fpci-driver.c;h=d7ffd66814bb51c14cbdf849fcd6a0a33f30dba7;hb=11d2c48e817d331a87efc4d45bdf510351198628;hp=4446fcb5effd347d87fb6314473297acc4558769;hpb=dfc956d8ee0b84eaba29434b7e5699bd81fed684;p=firefly-linux-kernel-4.4.55.git

diff --git a/drivers/pci/pci-driver.c b/drivers/pci/pci-driver.c
index 4446fcb5effd..d7ffd66814bb 100644
--- a/drivers/pci/pci-driver.c
+++ b/drivers/pci/pci-driver.c
@@ -1146,9 +1146,21 @@ static int pci_pm_runtime_suspend(struct device *dev)
 	pci_dev->state_saved = false;
 	pci_dev->no_d3cold = false;
 	error = pm->runtime_suspend(dev);
-	suspend_report_result(pm->runtime_suspend, error);
-	if (error)
+	if (error) {
+		/*
+		 * -EBUSY and -EAGAIN is used to request the runtime PM core
+		 * to schedule a new suspend, so log the event only with debug
+		 * log level.
+		 */
+		if (error == -EBUSY || error == -EAGAIN)
+			dev_dbg(dev, "can't suspend now (%pf returned %d)\n",
+				pm->runtime_suspend, error);
+		else
+			dev_err(dev, "can't suspend (%pf returned %d)\n",
+				pm->runtime_suspend, error);
+
 		return error;
+	}
 	if (!pci_dev->d3cold_allowed)
 		pci_dev->no_d3cold = true;