staging/ft1000: fix sparse warning about the kernel thread handler function

sparse throws warning about the ft1000_poll_thread as

drivers/staging/ft1000/ft1000-usb/ft1000_usb.c:40:5: warning: symbol 'ft1000_poll_thread' was not declared. Should it be static?

Signed-off-by: Devendra Naga <devendra.aaru@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
index bfead67436f..e434d33454a 100644
--- a/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
+++ b/drivers/staging/ft1000/ft1000-usb/ft1000_usb.c
@@ -37,7 +37,7 @@ static struct usb_device_id id_table[] = {
 MODULE_DEVICE_TABLE(usb, id_table);
 
 static bool gPollingfailed = FALSE;
-int ft1000_poll_thread(void *arg)
+static int ft1000_poll_thread(void *arg)
 {
         int ret = STATUS_SUCCESS;