gpu: host1x: Disable clock on probe failure

Add a missing clk_disable_unprepare() before returning from the driver's
.probe() function on error.
Signed-off-by: NWei Yongjun <yongjun_wei@trendmicro.com.cn>
Reviewed-by: NTerje Bergstrom <tbergstrom@nvidia.com>
Signed-off-by: NThierry Reding <treding@nvidia.com>

drivers/gpu/host1x/dev.c

@@ -154,7 +154,7 @@ static int host1x_probe(struct platform_device *pdev)
 	err = host1x_syncpt_init(host);
 	if (err) {
 		dev_err(&pdev->dev, "failed to initialize syncpts\n");
-		return err;
+		goto fail_unprepare_disable;
 	}
 
 	err = host1x_intr_init(host, syncpt_irq);
@@ -175,6 +175,8 @@ static int host1x_probe(struct platform_device *pdev)
 	host1x_intr_deinit(host);
 fail_deinit_syncpt:
 	host1x_syncpt_deinit(host);
+fail_unprepare_disable:
+	clk_disable_unprepare(host->clk);
 	return err;
 }