driver core: Display error codes when class suspend fails

Aid diagnostics by printing the error code from failed suspends, which
doesn't otherwise seem to get displayed.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/base/sys.c b/drivers/base/sys.c
index 9354dc1..1667aaf 100644 (file)
--- a/drivers/base/sys.c
+++ b/drivers/base/sys.c
@@ -432,13 +432,13 @@ int sysdev_suspend(pm_message_t state)
        /* resume current sysdev */
 cls_driver:
        drv = NULL;
-       printk(KERN_ERR "Class suspend failed for %s\n",
-               kobject_name(&sysdev->kobj));
+       printk(KERN_ERR "Class suspend failed for %s: %d\n",
+               kobject_name(&sysdev->kobj), ret);
 
 aux_driver:
        if (drv)
-               printk(KERN_ERR "Class driver suspend failed for %s\n",
-                               kobject_name(&sysdev->kobj));
+               printk(KERN_ERR "Class driver suspend failed for %s: %d\n",
+                               kobject_name(&sysdev->kobj), ret);
        list_for_each_entry(err_drv, &cls->drivers, entry) {
                if (err_drv == drv)
                        break;