Staging: speakup/speakup_acntpc: Return NULL instead of 0

The function returns a pointer. Hence return NULL instead of 0.

Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/speakup/speakup_acntpc.c b/drivers/staging/speakup/speakup_acntpc.c
index 87a508d..80141ac 100644 (file)
--- a/drivers/staging/speakup/speakup_acntpc.c
+++ b/drivers/staging/speakup/speakup_acntpc.c
@@ -166,7 +166,7 @@ static const char *synth_immediate(struct spk_synth *synth, const char *buf)
                outb_p(ch, speakup_info.port_tts);
                buf++;
        }
-       return 0;
+       return NULL;
 }
 
 static void do_catch_up(struct spk_synth *synth)