[PATCH] staging: speakup: fix warning for static declaration

[Gustavo A. R. Silva]

Fix the following sparse warning:
symbol 'spk_serial_out' was not declared. Should it be static?

Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
---
 drivers/staging/speakup/serialio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/speakup/serialio.c b/drivers/staging/speakup/serialio.c
index 5e31aca..3fab1c3 100644
--- a/drivers/staging/speakup/serialio.c
+++ b/drivers/staging/speakup/serialio.c
@@ -243,7 +243,7 @@ unsigned char spk_serial_in_nowait(void)
 }
 EXPORT_SYMBOL_GPL(spk_serial_in_nowait);
 
-int spk_serial_out(struct spk_synth *in_synth, const char ch)
+static int spk_serial_out(struct spk_synth *in_synth, const char ch)
 {
 	if (in_synth->alive && spk_wait_for_xmitr(in_synth)) {
 		outb_p(ch, speakup_info.port_tts);
-- 
2.5.0