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path: root/drivers/scsi/aacraid/commctrl.c
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Diffstat (limited to 'drivers/scsi/aacraid/commctrl.c')
-rw-r--r--drivers/scsi/aacraid/commctrl.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c
index 54195a117f72..4b3bb52b5108 100644
--- a/drivers/scsi/aacraid/commctrl.c
+++ b/drivers/scsi/aacraid/commctrl.c
@@ -855,13 +855,20 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
{
int status;
+ mutex_lock(&dev->ioctl_mutex);
+
+ if (dev->adapter_shutdown) {
+ status = -EACCES;
+ goto cleanup;
+ }
+
/*
* HBA gets first crack
*/
status = aac_dev_ioctl(dev, cmd, arg);
if (status != -ENOTTY)
- return status;
+ goto cleanup;
switch (cmd) {
case FSACTL_MINIPORT_REV_CHECK:
@@ -890,6 +897,10 @@ int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)
status = -ENOTTY;
break;
}
+
+cleanup:
+ mutex_unlock(&dev->ioctl_mutex);
+
return status;
}