Asoc: msm: Null dereference check added



In asm_read function we should check buffer pointer
before it is dererferenced.

CRs-Fixed: 612682
Change-Id: I1968c038e1d35381bf174000287d542441e41092
Signed-off-by: Anish Kumar <kanish@codeaurora.org>

parent db9318e3

sound/soc/msm/qdsp6v2/q6asm.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -3711,6 +3711,11 @@ int q6asm_read(struct audio_client *ac)
		mutex_lock(&port->lock);

		dsp_buf = port->dsp_buf;
		if (port->buf == NULL) {
		pr_err("%s buf is NULL\n", __func__);
		mutex_unlock(&port->lock);
		return -EINVAL;
		}
		ab = &port->buf[dsp_buf];

		pr_debug("%s:session[%d]dsp-buf[%d][%p]cpu_buf[%d][%pa]\n",