diff --git a/[refs] b/[refs]
index 8a567ca03311..23d70cc18c99 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d7c4660c12adc5c66351253af381259686fa08a4
+refs/heads/master: 178e485a0ebbfdb7165b4363d8fea2a07d650c0b
diff --git a/trunk/drivers/staging/dgrp/dgrp_tty.c b/trunk/drivers/staging/dgrp/dgrp_tty.c
index 72f6fcfa9878..e125b03598d7 100644
--- a/trunk/drivers/staging/dgrp/dgrp_tty.c
+++ b/trunk/drivers/staging/dgrp/dgrp_tty.c
@@ -3173,6 +3173,9 @@ dgrp_tty_init(struct nd_struct *nd)
 	 */
 
 	nd->nd_serial_ttdriver = alloc_tty_driver(CHAN_MAX);
+	if (!nd->nd_serial_ttdriver)
+		return -ENOMEM;
+
 	sprintf(nd->nd_serial_name,  "tty_dgrp_%s_", id);
 
 	nd->nd_serial_ttdriver->owner = THIS_MODULE;
@@ -3232,6 +3235,9 @@ dgrp_tty_init(struct nd_struct *nd)
 	}
 
 	nd->nd_callout_ttdriver = alloc_tty_driver(CHAN_MAX);
+	if (!nd->nd_callout_ttdriver)
+		return -ENOMEM;
+
 	sprintf(nd->nd_callout_name, "cu_dgrp_%s_",  id);
 
 	nd->nd_callout_ttdriver->owner = THIS_MODULE;
@@ -3269,6 +3275,9 @@ dgrp_tty_init(struct nd_struct *nd)
 
 
 	nd->nd_xprint_ttdriver = alloc_tty_driver(CHAN_MAX);
+	if (!nd->nd_xprint_ttdriver)
+		return -ENOMEM;
+
 	sprintf(nd->nd_xprint_name,  "pr_dgrp_%s_", id);
 
 	nd->nd_xprint_ttdriver->owner = THIS_MODULE;