[patch] backlight/88pm860x_bl: potential memory leak

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I added a kfree() on the error path.  I don't really expect it to affect
anyone, but it's easy and makes the static checkers happy.

Signed-off-by: Dan Carpenter <error27@xxxxxxxxx>

diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index 68d2518..78d8fde 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -222,6 +222,7 @@ static int pm860x_backlight_probe(struct platform_device *pdev)
 	data->port = __check_device(pdata, name);
 	if (data->port < 0) {
 		dev_err(&pdev->dev, "wrong platform data is assigned");
+		kfree(data);
 		return -EINVAL;
 	}
 
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