If omap4iss_get() failed, it need return error code in iss_probe().
Fixes: 59f0ad807681 ("[media] v4l: omap4iss: Add support for OMAP4...")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
        if (ret < 0)
                goto error;
 
-       if (!omap4iss_get(iss))
+       if (!omap4iss_get(iss)) {
+               ret = -EINVAL;
                goto error;
+       }
 
        ret = iss_reset(iss);
        if (ret < 0)