We used to set up the safemode_timer timer in md_run. If md_run
would fail before the timer was set up we'd end up trying to modify
a timer that doesn't have a callback function when we access safe_delay_store,
which would trigger a BUG.
Signed-off-by: Sasha Levin <sasha.levin@xxxxxxxxxx>
---
drivers/md/md.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 80879dc..60fb47e 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -502,6 +502,8 @@ static void mddev_put(struct mddev *mddev)
bioset_free(bs);
}
+static void md_safemode_timeout(unsigned long data);
+
void mddev_init(struct mddev *mddev)
{
mutex_init(&mddev->open_mutex);
@@ -510,6 +512,8 @@ void mddev_init(struct mddev *mddev)
INIT_LIST_HEAD(&mddev->disks);
INIT_LIST_HEAD(&mddev->all_mddevs);
init_timer(&mddev->safemode_timer);
+ setup_timer(&mddev->safemode_timer, md_safemode_timeout,
+ (unsigned long) mddev);
atomic_set(&mddev->active, 1);
atomic_set(&mddev->openers, 0);
atomic_set(&mddev->active_io, 0);
@@ -3276,8 +3280,6 @@ int strict_strtoul_scaled(const char *cp, unsigned long *res, int scale)
return 0;
}
-static void md_safemode_timeout(unsigned long data);
-
static ssize_t
safe_delay_show(struct mddev *mddev, char *page)
{
@@ -5204,8 +5206,6 @@ int md_run(struct mddev *mddev)
atomic_set(&mddev->max_corr_read_errors,
MD_DEFAULT_MAX_CORRECTED_READ_ERRORS);
mddev->safemode = 0;
- mddev->safemode_timer.function = md_safemode_timeout;
- mddev->safemode_timer.data = (unsigned long) mddev;
mddev->safemode_delay = (200 * HZ)/1000 +1; /* 200 msec delay */
mddev->in_sync = 1;
smp_wmb();
--
1.7.10.4
--
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