diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index f2edd6a..9659e58 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1322,6 +1322,7 @@
 						   cap_mask, irq);
 			if (IS_ERR(xordev->channels[i])) {
 				ret = PTR_ERR(xordev->channels[i]);
+				xordev->channels[i] = NULL;
 				irq_dispose_mapping(irq);
 				goto err_channel_add;
 			}