diff mbox

Input: ads7864 - Check return value of regulator enable

Message ID 1362207881-25259-1-git-send-email-broonie@opensource.wolfsonmicro.com (mailing list archive)
State New, archived
Headers show

Commit Message

Mark Brown March 2, 2013, 7:04 a.m. UTC 
At least print a warning if we can't power the device up.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
---
 drivers/input/touchscreen/ads7846.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 4f702b3..e0c8b7a 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -236,7 +236,12 @@  static void __ads7846_disable(struct ads7846 *ts)
 /* Must be called with ts->lock held */
 static void __ads7846_enable(struct ads7846 *ts)
 {
-	regulator_enable(ts->reg);
+	int ret;
+
+	ret = regulator_enable(ts->reg);
+	if (ret != 0)
+		dev_err(&ts->spi->dev, "Failed to enable supply: %d\n", ret);
+
 	ads7846_restart(ts);
 }