handle_sysrq can be called from interrupt context. sysrq_timer_list_show
eventually starts poking at module symbols which take the module mutex.
so instead, let's just kick off a workqueue.
[ doesn't happen on my laptop with the keyboard, but does when
triggered from /proc/sysrq-trigger ]
Signed-off-by: Kyle McMartin <[EMAIL PROTECTED]>
---
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index de60e1e..09bb030 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -159,10 +159,16 @@ static struct sysrq_key_op sysrq_sync_op = {
.enable_mask = SYSRQ_ENABLE_SYNC,
};
-static void sysrq_handle_show_timers(int key, struct tty_struct *tty)
+static void sysrq_show_timers_callback(struct work_struct *whocares)
{
sysrq_timer_list_show();
}
+static DECLARE_WORK(show_timers_work, sysrq_show_timers_callback);
+
+static void sysrq_handle_show_timers(int key, struct tty_struct *tty)
+{
+ schedule_work(&show_timers_work);
+}
static struct sysrq_key_op sysrq_show_timers_op = {
.handler = sysrq_handle_show_timers,
--
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