Commit f3a23277 authored Dec 26, 2017 by Raghava Aditya Renukunta Committed by Martin K. Petersen Jan 03, 2018

scsi: aacraid: Fix ioctl reset hang

Driver would hang when attempting to send reset from the ioctl interface,
since it would wait to retrieve the ioctl mutex at send shutdown.

Set adapter shutdown and unlock mutex before sending down reset request.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

parent 95900629

drivers/scsi/aacraid/commctrl.c

+5 −1

Original line number	Diff line number	Diff line
		@@ -1052,9 +1052,13 @@ static int aac_send_reset_adapter(struct aac_dev dev, void __user arg)
		if (copy_from_user((void *)&reset, arg, sizeof(struct aac_reset_iop)))
		return -EFAULT;

		dev->adapter_shutdown = 1;

		mutex_unlock(&dev->ioctl_mutex);
		retval = aac_reset_adapter(dev, 0, reset.reset_type);
		return retval;
		mutex_lock(&dev->ioctl_mutex);

		return retval;
		}

		int aac_do_ioctl(struct aac_dev * dev, int cmd, void __user *arg)