1 files changed, 12 insertions, 6 deletions

diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index f7fc2c2c97..f873fb89d3 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -22,23 +22,29 @@
 #include <dirent.h>
 #include <errno.h>
 #include <ftw.h>
+#include <limits.h>
 #include <signal.h>
+#include <stddef.h>
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
+#include <sys/statfs.h>
 #include <sys/types.h>
 #include <unistd.h>
 
 #include "alloc-util.h"
 #include "cgroup-util.h"
+#include "def.h"
 #include "dirent-util.h"
 #include "extract-word.h"
 #include "fd-util.h"
 #include "fileio.h"
 #include "formats-util.h"
 #include "fs-util.h"
+#include "log.h"
 #include "login-util.h"
 #include "macro.h"
+#include "missing.h"
 #include "mkdir.h"
 #include "parse-util.h"
 #include "path-util.h"
@@ -47,11 +53,11 @@
 #include "set.h"
 #include "special.h"
 #include "stat-util.h"
+#include "stdio-util.h"
 #include "string-table.h"
 #include "string-util.h"
 #include "unit-name.h"
 #include "user-util.h"
-#include "util.h"
 
 int cg_enumerate_processes(const char *controller, const char *path, FILE **_f) {
         _cleanup_free_ char *fs = NULL;
@@ -87,7 +93,7 @@ int cg_read_pid(FILE *f, pid_t *_pid) {
                 if (feof(f))
                         return 0;
 
-                return errno ? -errno : -EIO;
+                return errno > 0 ? -errno : -EIO;
         }
 
         if (ul <= 0)
@@ -642,7 +648,7 @@ int cg_trim(const char *controller, const char *path, bool delete_root) {
         if (nftw(fs, trim_cb, 64, FTW_DEPTH|FTW_MOUNT|FTW_PHYS) != 0) {
                 if (errno == ENOENT)
                         r = 0;
-                else if (errno != 0)
+                else if (errno > 0)
                         r = -errno;
                 else
                         r = -EIO;
@@ -711,7 +717,7 @@ int cg_attach(const char *controller, const char *path, pid_t pid) {
         if (pid == 0)
                 pid = getpid();
 
-        snprintf(c, sizeof(c), PID_FMT"\n", pid);
+        xsprintf(c, PID_FMT "\n", pid);
 
         return write_string_file(fs, c, 0);
 }
@@ -2085,7 +2091,7 @@ int cg_kernel_controllers(Set *controllers) {
                         if (feof(f))
                                 break;
 
-                        if (ferror(f) && errno != 0)
+                        if (ferror(f) && errno > 0)
                                 return -errno;
 
                         return -EBADMSG;
@@ -2130,7 +2136,7 @@ int cg_unified(void) {
         else if (F_TYPE_EQUAL(fs.f_type, TMPFS_MAGIC))
                 unified_cache = false;
         else
-                return -ENOEXEC;
+                return -ENOMEDIUM;
 
         return unified_cache;
 }