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Date: Thu, 24 Dec 2015 15:37:42 +0000
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "David S. Miller" <davem@...emloft.net>
Subject: [PATCH 3.2 76/77] isdn_ppp: Add checks for allocation failure in
isdn_ppp_open()
3.2.75-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Ben Hutchings <ben@...adent.org.uk>
commit 0baa57d8dc32db78369d8b5176ef56c5e2e18ab3 upstream.
Compile-tested only.
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
Signed-off-by: David S. Miller <davem@...emloft.net>
---
drivers/isdn/i4l/isdn_ppp.c | 6 ++++++
1 file changed, 6 insertions(+)
--- 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;
--
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