Merge branch 'linus' into core/rcu

1 files changed, 8 insertions, 0 deletions

diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
index c4995c9f573..39672f68ce5 100644
--- a/sound/core/rawmidi.c
+++ b/sound/core/rawmidi.c
@@ -148,6 +148,8 @@ static int snd_rawmidi_runtime_free(struct snd_rawmidi_substream *substream)
 
 static inline void snd_rawmidi_output_trigger(struct snd_rawmidi_substream *substream,int up)
 {
+	if (!substream->opened)
+		return;
 	if (up) {
 		tasklet_hi_schedule(&substream->runtime->tasklet);
 	} else {
@@ -158,6 +160,8 @@ static inline void snd_rawmidi_output_trigger(struct snd_rawmidi_substream *subs
 
 static void snd_rawmidi_input_trigger(struct snd_rawmidi_substream *substream, int up)
 {
+	if (!substream->opened)
+		return;
 	substream->ops->trigger(substream, up);
 	if (!up && substream->runtime->event)
 		tasklet_kill(&substream->runtime->tasklet);
@@ -857,6 +861,8 @@ int snd_rawmidi_receive(struct snd_rawmidi_substream *substream,
 	int result = 0, count1;
 	struct snd_rawmidi_runtime *runtime = substream->runtime;
 
+	if (!substream->opened)
+		return -EBADFD;
 	if (runtime->buffer == NULL) {
 		snd_printd("snd_rawmidi_receive: input is not active!!!\n");
 		return -EINVAL;
@@ -1126,6 +1132,8 @@ int snd_rawmidi_transmit_ack(struct snd_rawmidi_substream *substream, int count)
 int snd_rawmidi_transmit(struct snd_rawmidi_substream *substream,
 			 unsigned char *buffer, int count)
 {
+	if (!substream->opened)
+		return -EBADFD;
 	count = snd_rawmidi_transmit_peek(substream, buffer, count);
 	if (count < 0)
 		return count;