dell-wmi: don't generate errors on empty messages

There's no point in generating kernel messages if we didn't receive a
parsable keyboard event - only do so if there appeared to be a scancode.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c
index 9f345dc..0f900cc 100644 (file)
--- a/drivers/platform/x86/dell-wmi.c
+++ b/drivers/platform/x86/dell-wmi.c
@@ -176,9 +176,9 @@ static void dell_wmi_notify(u32 value, void *context)
                        input_sync(dell_wmi_input_dev);
                        input_report_key(dell_wmi_input_dev, key->keycode, 0);
                        input_sync(dell_wmi_input_dev);
-               } else
+               } else if (buffer[1] & 0xFFFF)
                        printk(KERN_INFO "dell-wmi: Unknown key %x pressed\n",
-                              buffer[1]);
+                              buffer[1] & 0xFFFF);
        }
 }