[PATCH] omapfb: encoder-tpd12s015: fix error return code

[Julia Lawall <Julia.Lawall@xxxxxxx>]

Return an error code on failure.

Problem found using Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

---
 drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c |   12 +++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
index 80dc473..2b58bfc 100644
--- a/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
+++ b/drivers/video/fbdev/omap2/omapfb/displays/encoder-tpd12s015.c
@@ -240,22 +240,28 @@ static int tpd_probe(struct platform_device *pdev)
 
 	gpio = devm_gpiod_get_index_optional(&pdev->dev, NULL, 0,
 		GPIOD_OUT_LOW);
-	if (IS_ERR(gpio))
+	if (IS_ERR(gpio)) {
+		r = PTR_ERR(gpio);
 		goto err_gpio;
+	}
 
 	ddata->ct_cp_hpd_gpio = gpio;
 
 	gpio = devm_gpiod_get_index_optional(&pdev->dev, NULL, 1,
 		GPIOD_OUT_LOW);
-	if (IS_ERR(gpio))
+	if (IS_ERR(gpio)) {
+		r = PTR_ERR(gpio);
 		goto err_gpio;
+	}
 
 	ddata->ls_oe_gpio = gpio;
 
 	gpio = devm_gpiod_get_index(&pdev->dev, NULL, 2,
 		GPIOD_IN);
-	if (IS_ERR(gpio))
+	if (IS_ERR(gpio)) {
+		r = PTR_ERR(gpio);
 		goto err_gpio;
+	}
 
 	ddata->hpd_gpio = gpio;
 

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