driver: platform: fix documentation for platform_get_irq_byname

Probably due to copy&paste, some stuff was simply forgotten.

Signed-off-by: Wolfram Sang <wolfram@the-dreams.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 1e8f654..d5e3b45 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -122,7 +122,7 @@
 EXPORT_SYMBOL_GPL(platform_get_resource_byname);
 
 /**
- * platform_get_irq - get an IRQ for a device
+ * platform_get_irq_byname - get an IRQ for a device by name
  * @dev: platform device
  * @name: IRQ name
  */