tree-wide: fix a number of log calls that use %m but have no errno set

This is mostly fall-out from d1a1f0aaf0d2f08c60d1e0d32e646439d99f58dc,
however some cases are older bugs.

There might be more issues lurking, this was a simple grep for "%m"
across the tree, with all lines removed that mention "errno" at all.

3 files changed, 11 insertions, 11 deletions

diff --git a/src/basic/conf-files.c b/src/basic/conf-files.c
index 2e65a6e74f..15a066da7f 100644
--- a/src/basic/conf-files.c
+++ b/src/basic/conf-files.c
@@ -349,7 +349,7 @@ int conf_files_cat(const char *root, const char *name) {
                 assert(endswith(dir, "/"));
                 r = strv_extendf(&dirs, "%s%s.d", dir, name);
                 if (r < 0)
-                        return log_error("Failed to build directory list: %m");
+                        return log_error_errno(r, "Failed to build directory list: %m");
         }
 
         r = conf_files_list_strv(&files, ".conf", root, 0, (const char* const*) dirs);
diff --git a/src/basic/fs-util.c b/src/basic/fs-util.c
index 6146c66782..ab6ccf7c86 100644
--- a/src/basic/fs-util.c
+++ b/src/basic/fs-util.c
@@ -1155,9 +1155,9 @@ int fsync_directory_of_file(int fd) {
 
         r = fd_get_path(fd, &path);
         if (r < 0) {
-                log_debug("Failed to query /proc/self/fd/%d%s: %m",
-                          fd,
-                          r == -EOPNOTSUPP ? ", ignoring" : "");
+                log_debug_errno(r, "Failed to query /proc/self/fd/%d%s: %m",
+                                fd,
+                                r == -EOPNOTSUPP ? ", ignoring" : "");
 
                 if (r == -EOPNOTSUPP)
                         /* If /proc is not available, we're most likely running in some
diff --git a/src/basic/selinux-util.c b/src/basic/selinux-util.c
index aba3e4f15d..61504a673a 100644
--- a/src/basic/selinux-util.c
+++ b/src/basic/selinux-util.c
@@ -79,7 +79,7 @@ int mac_selinux_init(void) {
 
         label_hnd = selabel_open(SELABEL_CTX_FILE, NULL, 0);
         if (!label_hnd) {
-                log_enforcing("Failed to initialize SELinux context: %m");
+                log_enforcing_errno(errno, "Failed to initialize SELinux context: %m");
                 r = security_getenforce() == 1 ? -errno : 0;
         } else  {
                 char timespan[FORMAT_TIMESPAN_MAX];
@@ -189,7 +189,7 @@ int mac_selinux_apply(const char *path, const char *label) {
         assert(label);
 
         if (setfilecon(path, label) < 0) {
-                log_enforcing("Failed to set SELinux security context %s on path %s: %m", label, path);
+                log_enforcing_errno(errno, "Failed to set SELinux security context %s on path %s: %m", label, path);
                 if (security_getenforce() > 0)
                         return -errno;
         }
@@ -349,12 +349,12 @@ int mac_selinux_create_file_prepare(const char *path, mode_t mode) {
                 if (errno == ENOENT)
                         return 0;
 
-                log_enforcing("Failed to determine SELinux security context for %s: %m", path);
+                log_enforcing_errno(errno, "Failed to determine SELinux security context for %s: %m", path);
         } else {
                 if (setfscreatecon_raw(filecon) >= 0)
                         return 0; /* Success! */
 
-                log_enforcing("Failed to set SELinux security context %s for %s: %m", filecon, path);
+                log_enforcing_errno(errno, "Failed to set SELinux security context %s for %s: %m", filecon, path);
         }
 
         if (security_getenforce() > 0)
@@ -385,7 +385,7 @@ int mac_selinux_create_socket_prepare(const char *label) {
         assert(label);
 
         if (setsockcreatecon(label) < 0) {
-                log_enforcing("Failed to set SELinux security context %s for sockets: %m", label);
+                log_enforcing_errno(errno, "Failed to set SELinux security context %s for sockets: %m", label);
 
                 if (security_getenforce() == 1)
                         return -errno;
@@ -457,13 +457,13 @@ int mac_selinux_bind(int fd, const struct sockaddr *addr, socklen_t addrlen) {
                 if (errno == ENOENT)
                         goto skipped;
 
-                log_enforcing("Failed to determine SELinux security context for %s: %m", path);
+                log_enforcing_errno(errno, "Failed to determine SELinux security context for %s: %m", path);
                 if (security_getenforce() > 0)
                         return -errno;
 
         } else {
                 if (setfscreatecon_raw(fcon) < 0) {
-                        log_enforcing("Failed to set SELinux security context %s for %s: %m", fcon, path);
+                        log_enforcing_errno(errno, "Failed to set SELinux security context %s for %s: %m", fcon, path);
                         if (security_getenforce() > 0)
                                 return -errno;
                 } else