From: Bartosz Golaszewski <redacted>
Date: Mon, 13 Apr 2015 09:44:14 +0000 (+0200)
Subject: baylibre-acme: Add a missing return value check.
X-Git-Tag: libsigrok-0.4.0~526
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=192d37e728b13393e9987f3cc888670b60efd197;p=libsigrok.git

baylibre-acme: Add a missing return value check.

Check the return value of sr_gpio_setval_export() in bl_acme_set_power_off()
and return an appropriate error if the call fails.

Signed-off-by: Bartosz Golaszewski <redacted>
---

diff --git a/src/hardware/baylibre-acme/protocol.c b/src/hardware/baylibre-acme/protocol.c
index d0552553..f8fdb595 100644
--- a/src/hardware/baylibre-acme/protocol.c
+++ b/src/hardware/baylibre-acme/protocol.c
@@ -424,6 +424,11 @@ SR_PRIV int bl_acme_set_power_off(const struct sr_channel_group *cg,
 	}
 
 	val = sr_gpio_setval_export(pws_gpios[cgp->index], off ? 0 : 1);
+	if (val < 0) {
+		sr_err("Error setting power-off state: gpio: %d",
+		       pws_gpios[cgp->index]);
+		return SR_ERR_IO;
+	}
 
 	return SR_OK;
 }