Re: [PATCH] backlight: adp5520: fix error handling in adp5520_bl_probe()

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On 09.07.2016 00:19, Alexey Khoroshilov wrote:
If adp5520_bl_setup() fails, sysfs group left unremoved.

By the way, fix overcomplicated assignement of error code.

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Alexey Khoroshilov <khoroshilov@xxxxxxxxx>

Acked-by: Michael Hennerich <michael.hennerich@xxxxxxxxxx>

---
  drivers/video/backlight/adp5520_bl.c | 12 ++++++++++--
  1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index dd88ba1d71ce..35373e2065b2 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -332,10 +332,18 @@ static int adp5520_bl_probe(struct platform_device *pdev)
  	}

  	platform_set_drvdata(pdev, bl);
-	ret |= adp5520_bl_setup(bl);
+	ret = adp5520_bl_setup(bl);
+	if (ret) {
+		dev_err(&pdev->dev, "failed to setup\n");
+		if (data->pdata->en_ambl_sens)
+			sysfs_remove_group(&bl->dev.kobj,
+					&adp5520_bl_attr_group);
+		return ret;
+	}
+
  	backlight_update_status(bl);

-	return ret;
+	return 0;
  }

  static int adp5520_bl_remove(struct platform_device *pdev)



--
Greetings,
Michael

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