[linux-pm] [PATCH 3/3] PCI PM: Make warning in pci_legacy_suspend more useful

[Rafael J. Wysocki]

From: Rafael J. Wysocki <rjw at sisk.pl>

The warning in pci_legacy_suspend() would be much more useful if it
printed the name of the function that did the wrong thing.  Make it
do so.

Signed-off-by: Rafael J. Wysocki <rjw at sisk.pl>
---
 drivers/pci/pci-driver.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

Index: linux-2.6/drivers/pci/pci-driver.c
===================================================================
--- linux-2.6.orig/drivers/pci/pci-driver.c
+++ linux-2.6/drivers/pci/pci-driver.c
@@ -365,7 +365,9 @@ static int pci_legacy_suspend(struct dev
 		if (pci_dev->state_saved)
 			goto Fixup;
 
-		if (WARN_ON_ONCE(pci_dev->current_state != PCI_D0))
+		if (WARN_ONCE(pci_dev->current_state != PCI_D0,
+				"PCI PM: Device state not saved by %pF\n",
+				drv->suspend))
 			goto Fixup;
 	}