1 files changed, 6 insertions, 0 deletions

diff --git a/sys/dev/mpr/mpr.c b/sys/dev/mpr/mpr.c
index 0f4c5c906216..b4d3f3269dba 100644
--- a/sys/dev/mpr/mpr.c
+++ b/sys/dev/mpr/mpr.c
@@ -3704,6 +3704,12 @@ mpr_data_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error)
 				mpr_dprint(sc, MPR_INFO, "Out of chain frames, "
 				    "consider increasing hw.mpr.max_chains.\n");
 			cm->cm_flags |= MPR_CM_FLAGS_CHAIN_FAILED;
+			/*
+			 * mpr_complete_command can only be called on commands
+			 * that are in the queue. Since this is an error path
+			 * which gets called before we enqueue, update the state
+			 * to meet this requirement before we complete it.
+			 */
 			cm->cm_state = MPR_CM_STATE_INQUEUE;
 			mpr_complete_command(sc, cm);
 			return;