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backlight: use SYNTHETIC_ERRNO() macro

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This commit is contained in:
Yu Watanabe 2020-06-30 19:28:50 +09:00
parent 7aee1e7304
commit 74f1bb5c9f
1 changed files with 10 additions and 20 deletions
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30
src/backlight/backlight.c
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@ -224,10 +224,8 @@ static int get_max_brightness(sd_device *device, unsigned *ret) {
if (r < 0)
return log_device_warning_errno(device, r, "Failed to parse 'max_brightness' \"%s\": %m", max_brightness_str);
if (max_brightness <= 0) {
log_device_warning(device, "Maximum brightness is 0, ignoring device.");
return -EINVAL;
}
if (max_brightness <= 0)
return log_device_warning_errno(device, SYNTHETIC_ERRNO(EINVAL), "Maximum brightness is 0, ignoring device.");
*ret = max_brightness;
return 0;
@ -306,10 +304,8 @@ static int run(int argc, char *argv[]) {
unsigned max_brightness;
int r;
if (argc != 3) {
log_error("This program requires two arguments.");
return -EINVAL;
}
if (argc != 3)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "This program requires two arguments.");
log_setup_service();
@ -320,19 +316,15 @@ static int run(int argc, char *argv[]) {
return log_error_errno(r, "Failed to create backlight directory /var/lib/systemd/backlight: %m");
sysname = strchr(argv[2], ':');
if (!sysname) {
log_error("Requires a subsystem and sysname pair specifying a backlight device.");
return -EINVAL;
}
if (!sysname)
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Requires a subsystem and sysname pair specifying a backlight device.");
ss = strndupa(argv[2], sysname - argv[2]);
sysname++;
if (!STR_IN_SET(ss, "backlight", "leds")) {
log_error("Not a backlight or LED device: '%s:%s'", ss, sysname);
return -EINVAL;
}
if (!STR_IN_SET(ss, "backlight", "leds"))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Not a backlight or LED device: '%s:%s'", ss, sysname);
r = sd_device_new_from_subsystem_sysname(&device, ss, sysname);
if (r < 0)
@ -424,10 +416,8 @@ static int run(int argc, char *argv[]) {
if (r < 0)
return log_device_error_errno(device, r, "Failed to write %s: %m", saved);
} else {
log_error("Unknown verb %s.", argv[1]);
return -EINVAL;
}
} else
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Unknown verb %s.", argv[1]);
return 0;
}