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Date: Mon, 19 May 2014 23:24:22 +0200 From: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> To: Karsten Keil <isdn@...ux-pingi.de>, Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se> Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH] isdn: hisax: l3dss1.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@...ctrumdigital.se> --- drivers/isdn/hisax/l3dss1.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/isdn/hisax/l3dss1.c b/drivers/isdn/hisax/l3dss1.c index cda7006..9ea7377 100644 --- a/drivers/isdn/hisax/l3dss1.c +++ b/drivers/isdn/hisax/l3dss1.c @@ -2203,13 +2203,14 @@ static int l3dss1_cmd_global(struct PStack *st, isdn_ctrl *ic) memcpy(p, ic->parm.dss1_io.data, ic->parm.dss1_io.datalen); /* copy data */ l = (p - temp) + ic->parm.dss1_io.datalen; /* total length */ - if (ic->parm.dss1_io.timeout > 0) - if (!(pc = dss1_new_l3_process(st, -1))) - { free_invoke_id(st, id); + if (ic->parm.dss1_io.timeout > 0) { + if (!(pc = dss1_new_l3_process(st, -1))) { + free_invoke_id(st, id); return (-2); } - pc->prot.dss1.ll_id = ic->parm.dss1_io.ll_id; /* remember id */ - pc->prot.dss1.proc = ic->parm.dss1_io.proc; /* and procedure */ + pc->prot.dss1.ll_id = ic->parm.dss1_io.ll_id; /* remember id */ + pc->prot.dss1.proc = ic->parm.dss1_io.proc; /* and procedure */ + } if (!(skb = l3_alloc_skb(l))) { free_invoke_id(st, id); -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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