From: Antonio Ospite <ao2@ao2.it>
Date: Mon, 20 Apr 2015 14:42:02 +0000 (+0200)
Subject: am7xxx: fix the error path of the second configuration check
X-Git-Tag: v0.1.6~28
X-Git-Url: https://git.ao2.it/libam7xxx.git/commitdiff_plain/361d1aa96547f527f1c60a871db35c943bc07471?hp=2f9553ff3efdbd00111e90774fd90907a2e45200

am7xxx: fix the error path of the second configuration check

Return a negative error value when the configuration check done after
claiming the interface fails, and also fix the output messages.
---

diff --git a/src/am7xxx.c b/src/am7xxx.c
index 6595ccf..1c3f704 100644
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -774,9 +774,9 @@ static int open_device(am7xxx_context *ctx,
 	current_configuration = -1;
 	libusb_get_configuration((*dev)->usb_device, &current_configuration);
 	if (current_configuration != (*dev)->desc->configuration) {
-		debug(ctx, "libusb configuration changed\n");
-		debug(ctx, "Cannot claim interface %hhu\n",
-		      (*dev)->desc->interface_number);
+		debug(ctx, "libusb configuration changed (expected: %hhu, current: %hhu\n",
+		      (*dev)->desc->configuration, current_configuration);
+		ret = -EINVAL;
 		goto out_libusb_close;
 	}
 out: