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main: make sure set_machine_id() doesn't clobber arg_machine_id on failure

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This commit is contained in:
Lennart Poettering 2016-07-21 20:22:42 +02:00
parent 15b1248a6b
commit e042eab720
1 changed files with 4 additions and 2 deletions
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6
src/core/main.c
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@ -291,14 +291,16 @@ static int parse_crash_chvt(const char *value) {
}
static int set_machine_id(const char *m) {
sd_id128_t t;
assert(m);
if (sd_id128_from_string(m, &arg_machine_id) < 0)
if (sd_id128_from_string(m, &t) < 0)
return -EINVAL;
if (sd_id128_is_null(arg_machine_id))
if (sd_id128_is_null(t))
return -EINVAL;
arg_machine_id = t;
return 0;
}