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backlight: exit earlier when unknown verb is specified

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This commit is contained in:
Yu Watanabe 2021-02-22 23:00:46 +09:00
parent 84d32bf59b
commit 7a9737bc7d
1 changed files with 4 additions and 1 deletions
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5
src/backlight/backlight.c
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@ -388,6 +388,9 @@ static int run(int argc, char *argv[]) {
if (argc != 3)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program requires two arguments.");
if (!STR_IN_SET(argv[1], "load", "save"))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown verb %s.", argv[1]);
umask(0022);
r = mkdir_p("/var/lib/systemd/backlight", 0755);
@ -503,7 +506,7 @@ static int run(int argc, char *argv[]) {
return log_device_error_errno(device, r, "Failed to write %s: %m", saved);
} else
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown verb %s.", argv[1]);
assert_not_reached("Unknown verb.");
return 0;
}