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isdn_ppp: Add checks for allocation failure in isdn_ppp_open()

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Compile-tested only.

Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ben Hutchings 2015-11-01 16:21:24 +00:00 committed by David S. Miller
parent 7091079173
commit 0baa57d8dc
1 changed files with 6 additions and 0 deletions
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6
drivers/isdn/i4l/isdn_ppp.c
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@ -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;