From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Date: Mon, 2 Jan 2023 14:31:58 +0000 (+0100)
Subject: gpiosim: fix error reporting in gpiosim_bank_hog_line()
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=936785d36e2971b3d9cccfd51d4a46dd1760597b;p=qemu-gpiodev%2Flibgpiod.git

gpiosim: fix error reporting in gpiosim_bank_hog_line()

We don't return errno numbers from public functions - we set errno and
indicate an error by returning -1 or NULL depending on the function
signature. Make gpiosim_bank_hog_line() consistent with that behavior.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---

diff --git a/tests/gpiosim/gpiosim.c b/tests/gpiosim/gpiosim.c
index f5e910e..f46adfa 100644
--- a/tests/gpiosim/gpiosim.c
+++ b/tests/gpiosim/gpiosim.c
@@ -1058,7 +1058,8 @@ GPIOSIM_API int gpiosim_bank_hog_line(struct gpiosim_bank *bank,
 		dir = "output-low";
 		break;
 	default:
-		return -EINVAL;
+		errno = EINVAL;
+		return -1;
 	}
 
 	if (!dev_check_pending(bank->dev))