genirq: show_interrupts: Check desc->name before printing it blindly

desc->name is not required and not used by all architectures.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c
index 4cc2e5ed0bec2e1228f741af005d581808a6c13a..760248de109d8e9d9ec163bbd251684c9b00a054 100644 (file)
--- a/kernel/irq/proc.c
+++ b/kernel/irq/proc.c
@@ -405,7 +405,8 @@ int show_interrupts(struct seq_file *p, void *v)
        for_each_online_cpu(j)
                seq_printf(p, "%10u ", kstat_irqs_cpu(i, j));
        seq_printf(p, " %8s", desc->irq_data.chip->name);
-       seq_printf(p, "-%-8s", desc->name);
+       if (desc->name)
+               seq_printf(p, "-%-8s", desc->name);
 
        if (action) {
                seq_printf(p, "  %s", action->name);