media: omap3isp: Remove useless NULL check in omap3isp_stat_config

The omap3isp driver checked whether the second argument (the new
configuration) to the ISP statistics is NULL. This is the pointer to the
user-given argument and is never NULL. Remove the check.

Reported-by: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Suggested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>

drivers/media/platform/omap3isp/ispstat.c

@@ -544,12 +544,6 @@ int omap3isp_stat_config(struct ispstat *stat, void *new_conf)
 	struct ispstat_generic_config *user_cfg = new_conf;
 	u32 buf_size = user_cfg->buf_size;
 
-	if (!new_conf) {
-		dev_dbg(stat->isp->dev, "%s: configuration is NULL\n",
-			stat->subdev.name);
-		return -EINVAL;
-	}
-
 	mutex_lock(&stat->ioctl_lock);
 
 	dev_dbg(stat->isp->dev,