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>

1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/char/ttyprintk.c b/drivers/char/ttyprintk.c
index a1f68af4ccf4..071003843f17 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;