mfd: Fix a memory leak when unload mc13xxx-core module

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index 1326e7f..a2ac2ed 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -795,6 +795,8 @@
 
 	mfd_remove_devices(&spi->dev);
 
+	kfree(mc13xxx);
+
 	return 0;
 }