[media] staging: omap4iss: copy paste error in iss_get_clocks

It makes more sense to return PTR_ERR(iss->iss_ctrlclk) here. The
current code looks like an oversight in pasting the block just above
this one.
Signed-off-by: Vitaly Osipov <vitaly.osipov@gmail.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/staging/media/omap4iss/iss.c

@@ -1014,6 +1014,7 @@ static int iss_get_clocks(struct iss_device *iss)
 	iss->iss_ctrlclk = devm_clk_get(iss->dev, "iss_ctrlclk");
 	if (IS_ERR(iss->iss_ctrlclk)) {
 		dev_err(iss->dev, "Unable to get iss_ctrlclk clock info\n");
+		iss_put_clocks(iss);
 		return PTR_ERR(iss->iss_ctrlclk);
 	}