diff options
| -rw-r--r-- | drivers/scsi/hpsa.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 20a5e6ecf94..c3db9bb1c23 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4942,6 +4942,15 @@ static void hpsa_flush_cache(struct ctlr_info *h) { char *flush_buf; struct CommandList *c; + unsigned long flags; + + /* Don't bother trying to flush the cache if locked up */ + spin_lock_irqsave(&h->lock, flags); + if (unlikely(h->lockup_detected)) { + spin_unlock_irqrestore(&h->lock, flags); + return; + } + spin_unlock_irqrestore(&h->lock, flags); flush_buf = kzalloc(4, GFP_KERNEL); if (!flush_buf) |