diff options
| author | Lennart Poettering <lennart@poettering.net> | 2012-12-23 21:58:37 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2012-12-24 00:29:40 +0100 |
| commit | 679b7d791241eb52e15e4914e0d5709f67ff5123 (patch) | |
| tree | 08b7e7b33146761127cb59de8f85accdc22b86e4 | |
| parent | 11dc5d2b649afaf9f4470ad97929ebe844604f44 (diff) | |
util: if /sys mounted read-only we can't suspend/hibernate
| -rw-r--r-- | src/shared/util.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/src/shared/util.c b/src/shared/util.c index 59d8544d05..1779625c77 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -5282,9 +5282,13 @@ int can_sleep(const char *type) { assert(type); + /* If /sys is read-only we cannot sleep */ + if (access("/sys/power/state", W_OK) < 0) + return false; + r = read_one_line_file("/sys/power/state", &p); if (r < 0) - return r == -ENOENT ? 0 : r; + return false; k = strlen(type); FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) @@ -5302,9 +5306,14 @@ int can_sleep_disk(const char *type) { assert(type); + /* If /sys is read-only we cannot sleep */ + if (access("/sys/power/state", W_OK) < 0 || + access("/sys/power/disk", W_OK) < 0) + return false; + r = read_one_line_file("/sys/power/disk", &p); if (r < 0) - return r == -ENOENT ? 0 : r; + return false; k = strlen(type); FOREACH_WORD_SEPARATOR(w, l, p, WHITESPACE, state) { |