drivers/char: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required
They will need it called out explicitly in the near future due
to a module.h usage cleanup that removes its implicit presence
everywhere.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index a1f68af..0710038 100644
--- a/drivers/char/ttyprintk.c
+++ b/drivers/char/ttyprintk.c
@@ -17,6 +17,7 @@
#include <linux/device.h>
#include <linux/serial.h>
#include <linux/tty.h>
+#include <linux/export.h>
struct ttyprintk_port {
struct tty_port port;