From: Tom Gundersen <teg@jklm.no>
Date: Tue, 14 Apr 2015 13:15:49 +0000 (+0200)
Subject: sd-device: allow uevent files to be write-only
X-Git-Tag: v220~422
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=bba061662b0f759abb43bad60c9733305c191045;p=thirdparty%2Fsystemd.git

sd-device: allow uevent files to be write-only
---

diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/sd-device/sd-device.c
index b828fa830a1..7d52e3cc1d0 100644
--- a/src/libsystemd/sd-device/sd-device.c
+++ b/src/libsystemd/sd-device/sd-device.c
@@ -499,7 +499,10 @@ int device_read_uevent_file(sd_device *device) {
         path = strjoina(syspath, "/uevent");
 
         r = read_full_file(path, &uevent, &uevent_len);
-        if (r < 0) {
+        if (r == -EACCES)
+                /* empty uevent files may be write-only */
+                return 0;
+        else if (r < 0) {
                 log_debug("sd-device: failed to read uevent file '%s': %s", path, strerror(-r));
                 return r;
         }