}
static void bump_sysctl_printk_log_level(int min_level) {
+ int current_lvl, r;
+
/* Set the logging level to be able to see messages with log level smaller or equal to min_level */
- int current_lvl = read_current_sysctl_printk_log_level();
- if (current_lvl >= 0 && current_lvl <= min_level) {
- char buf[DECIMAL_STR_MAX(int)];
- xsprintf(buf, "%d", min_level + 1);
- int r = sysctl_write("kernel/printk", buf);
- if (r < 0)
- log_debug_errno(r, "Failed to bump kernel.printk to %s: %m", buf);
- }
+ current_lvl = read_current_sysctl_printk_log_level();
+ if (current_lvl < 0 || current_lvl >= min_level + 1)
+ return;
+
+ r = sysctl_writef("kernel/printk", "%i", min_level + 1);
+ if (r < 0)
+ log_debug_errno(r, "Failed to bump kernel.printk to %i: %m", min_level + 1);
}
int main(int argc, char *argv[]) {