diff --git a/sys/dev/sound/pcm/dsp.c b/sys/dev/sound/pcm/dsp.c
index 3cb09d7f504..5f94199e24a 100644
--- a/sys/dev/sound/pcm/dsp.c
+++ b/sys/dev/sound/pcm/dsp.c
@@ -1157,7 +1157,7 @@ dsp_clone(void *arg, struct ucred *cred, char *name, int namelen,
 				panic("Unknown devtype %d", devtype);
 		}
 
-		if ((pdev->si_drv1 == NULL) && (pdev->si_drv2 == NULL)) {
+		if ((pdev != NULL) && (pdev->si_drv1 == NULL) && (pdev->si_drv2 == NULL)) {
 			*dev = pdev;
 			dev_ref(*dev);
 			return;
diff --git a/sys/dev/sound/pcm/mixer.c b/sys/dev/sound/pcm/mixer.c
index 6b8dac11dd4..b8f78d3cfab 100644
--- a/sys/dev/sound/pcm/mixer.c
+++ b/sys/dev/sound/pcm/mixer.c
@@ -515,7 +515,7 @@ mixer_clone(void *arg, struct ucred *cred, char *name, int namelen,
 		return;
 	if (strcmp(name, "mixer") == 0) {
 		sd = devclass_get_softc(pcm_devclass, snd_unit);
-		if (sd != NULL) {
+		if (sd != NULL && sd->mixer_dev != NULL) {
 			*dev = sd->mixer_dev;
 			dev_ref(*dev);
 		}