diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 61cd4e90e4e7..06a3d95ed8f9 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3964,9 +3964,19 @@ static inline ata_xlat_func_t ata_get_xlat_func(struct ata_device *dev, u8 cmd)
 
 int __ata_scsi_queuecmd(struct scsi_cmnd *scmd, struct ata_device *dev)
 {
+	struct ata_port *ap = dev->link->ap;
 	u8 scsi_op = scmd->cmnd[0];
 	ata_xlat_func_t xlat_func;
 
+	/*
+	 * scsi_queue_rq() will defer commands if scsi_host_in_recovery().
+	 * However, this check is done without holding the ap->lock (a libata
+	 * specific lock), so we can have received an error irq since then,
+	 * therefore we must check if EH is pending, while holding ap->lock.
+	 */
+	if (ap->pflags & (ATA_PFLAG_EH_PENDING | ATA_PFLAG_EH_IN_PROGRESS))
+		return SCSI_MLQUEUE_DEVICE_BUSY;
+
 	if (unlikely(!scmd->cmd_len))
 		goto bad_cdb_len;