clocksource: sh_tmu: Release clock when sh_tmu_register() fails

Fix the probe error path to release the clock resource when the
sh_tmu_register() call fails.

Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>

1 files changed, 10 insertions, 3 deletions

diff --git a/drivers/clocksource/sh_tmu.c b/drivers/clocksource/sh_tmu.c
index 78b8dae49628..15978372c937 100644
--- a/drivers/clocksource/sh_tmu.c
+++ b/drivers/clocksource/sh_tmu.c
@@ -475,9 +475,16 @@ static int sh_tmu_setup(struct sh_tmu_priv *p, struct platform_device *pdev)
         p->cs_enabled = false;
         p->enable_count = 0;
 
-        return sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
-                               cfg->clockevent_rating,
-                               cfg->clocksource_rating);
+        ret = sh_tmu_register(p, (char *)dev_name(&p->pdev->dev),
+                              cfg->clockevent_rating,
+                              cfg->clocksource_rating);
+        if (ret < 0)
+                goto err2;
+
+        return 0;
+
+ err2:
+        clk_put(p->clk);
  err1:
         iounmap(p->mapbase);
  err0: