isdn_ppp: Add checks for allocation failure in isdn_ppp_open()

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / isdn / i4l / isdn_ppp.c

diff --git a/drivers/isdn/i4l/isdn_ppp.c b/drivers/isdn/i4l/isdn_ppp.c
index 38ceac5053a0ba79df766c16889cf5f384b582f4..12bcce1b40254201c51800a0faf8e4f70c941707 100644 (file)
--- 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;