patch-2_6_7-vs1_9_1_12

[linux-2.6.git] / arch / sh / kernel / smp.c

diff --git a/arch/sh/kernel/smp.c b/arch/sh/kernel/smp.c
index 97ed434..adb8eae 100644 (file)
--- a/arch/sh/kernel/smp.c
+++ b/arch/sh/kernel/smp.c
@@ -181,6 +181,9 @@ int smp_call_function(void (*func)(void *info), void *info, int retry, int wait)
        if (nr_cpus < 2)
                return 0;
 
+       /* Can deadlock when called with interrupts disabled */
+       WARN_ON(irqs_disabled());
+
        spin_lock(&smp_fn_call.lock);
 
        atomic_set(&smp_fn_call.finished, 0);