Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm

[pandora-kernel.git] / kernel / time / tick-oneshot.c

diff --git a/kernel/time/tick-oneshot.c b/kernel/time/tick-oneshot.c
index f6997ab..0258d31 100644 (file)
--- a/kernel/time/tick-oneshot.c
+++ b/kernel/time/tick-oneshot.c
@@ -73,8 +73,21 @@ int tick_switch_to_oneshot(void (*handler)(struct clock_event_device *))
        struct clock_event_device *dev = td->evtdev;
 
        if (!dev || !(dev->features & CLOCK_EVT_FEAT_ONESHOT) ||
-           !tick_device_is_functional(dev))
+                   !tick_device_is_functional(dev)) {
+
+               printk(KERN_INFO "Clockevents: "
+                      "could not switch to one-shot mode:");
+               if (!dev) {
+                       printk(" no tick device\n");
+               } else {
+                       if (!tick_device_is_functional(dev))
+                               printk(" %s is not functional.\n", dev->name);
+                       else
+                               printk(" %s does not support one-shot mode.\n",
+                                      dev->name);
+               }
                return -EINVAL;
+       }
 
        td->mode = TICKDEV_MODE_ONESHOT;
        dev->event_handler = handler;