From 59f271755df42fce6d38ebdf5b7502666b1e0c36 Mon Sep 17 00:00:00 2001
From: Ben Hutchings <ben@decadent.org.uk>
Date: Sun, 1 Nov 2015 16:21:24 +0000
Subject: [PATCH 1/2] isdn_ppp: Add checks for allocation failure in
isdn_ppp_open()
Compile-tested only.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
drivers/isdn/i4l/isdn_ppp.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index c4198fa490bf..86f9abebcb72 100644
--- a/drivers/isdn/i4l/isdn_ppp.c
+++ b/drivers/isdn/i4l/isdn_ppp.c
@@ -301,6 +301,8 @@ isdn_ppp_open(int min, struct file *file)
is->compflags = 0;
is->reset = isdn_ppp_ccp_reset_alloc(is);
+ if (!is->reset)
+ return -ENOMEM;
is->lp = NULL;
is->mp_seqno = 0; /* MP sequence number */
@@ -320,6 +322,10 @@ isdn_ppp_open(int min, struct file *file)
* VJ header compression init
*/
is->slcomp = slhc_init(16, 16); /* not necessary for 2. link in bundle */
+ if (!is->slcomp) {
+ isdn_ppp_ccp_reset_free(is);
+ return -ENOMEM;
+ }
#endif
#ifdef CONFIG_IPPP_FILTER
is->pass_filter = NULL;
--
2.4.3