libudev: set errno if udev_new() fails

All other constructors in libudev do that, let's also do this for udev_new().

1 files changed, 3 insertions, 1 deletions

diff --git a/src/libudev/libudev.c b/src/libudev/libudev.c
index 57ce749e07..d8e13288b0 100644
--- a/src/libudev/libudev.c
+++ b/src/libudev/libudev.c
@@ -97,8 +97,10 @@ _public_ struct udev *udev_new(void) {
         _cleanup_fclose_ FILE *f = NULL;
 
         udev = new0(struct udev, 1);
-        if (udev == NULL)
+        if (!udev) {
+                errno = -ENOMEM;
                 return NULL;
+        }
         udev->refcount = 1;
 
         f = fopen("/etc/udev/udev.conf", "re");