Index: head/sys/cam/mmc/mmc_da.c
===================================================================
--- head/sys/cam/mmc/mmc_da.c
+++ head/sys/cam/mmc/mmc_da.c
@@ -789,7 +789,6 @@
 
 	softc = (struct sdda_softc *)malloc(sizeof(*softc), M_DEVBUF,
 	    M_NOWAIT|M_ZERO);
-
 	if (softc == NULL) {
 		printf("sddaregister: Unable to probe new device. "
 		    "Unable to allocate softc\n");
@@ -802,6 +801,7 @@
 	if (softc->mmcdata == NULL) {
 		printf("sddaregister: Unable to probe new device. "
 		    "Unable to allocate mmcdata\n");
+		free(softc, M_DEVBUF);
 		return (CAM_REQ_CMP_ERR);
 	}
 	periph->softc = softc;