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authorRickard Strandqvist <rickard_strandqvist@spectrumdigital.se>2014-07-06 16:04:37 +0400
committerDavid S. Miller <davem@davemloft.net>2014-07-09 03:06:21 +0400
commit85b722d760f0de77c4bb371b77202784671f5a54 (patch)
tree182d0ebd035a918ecca3b952ad436bfa79543220 /drivers/isdn/hisax
parent29322d0db98e5a84f5cc6a55655bee3dc4ffb5ab (diff)
downloadlinux-85b722d760f0de77c4bb371b77202784671f5a54.tar.xz
isdn: hisax: l3ni1.c: Fix for possible null pointer dereference
There is otherwise a risk of a possible null pointer dereference. Was largely found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Diffstat (limited to 'drivers/isdn/hisax')
-rw-r--r--drivers/isdn/hisax/l3ni1.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/isdn/hisax/l3ni1.c b/drivers/isdn/hisax/l3ni1.c
index 0df6691d045c..8dc791bfaa6f 100644
--- a/drivers/isdn/hisax/l3ni1.c
+++ b/drivers/isdn/hisax/l3ni1.c
@@ -2059,13 +2059,17 @@ static int l3ni1_cmd_global(struct PStack *st, isdn_ctrl *ic)
memcpy(p, ic->parm.ni1_io.data, ic->parm.ni1_io.datalen); /* copy data */
l = (p - temp) + ic->parm.ni1_io.datalen; /* total length */
- if (ic->parm.ni1_io.timeout > 0)
- if (!(pc = ni1_new_l3_process(st, -1)))
- { free_invoke_id(st, id);
+ if (ic->parm.ni1_io.timeout > 0) {
+ pc = ni1_new_l3_process(st, -1);
+ if (!pc) {
+ free_invoke_id(st, id);
return (-2);
}
- pc->prot.ni1.ll_id = ic->parm.ni1_io.ll_id; /* remember id */
- pc->prot.ni1.proc = ic->parm.ni1_io.proc; /* and procedure */
+ /* remember id */
+ pc->prot.ni1.ll_id = ic->parm.ni1_io.ll_id;
+ /* and procedure */
+ pc->prot.ni1.proc = ic->parm.ni1_io.proc;
+ }
if (!(skb = l3_alloc_skb(l)))
{ free_invoke_id(st, id);