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scsi: aacraid: Block concurrent hotplug event handling

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Currently driver will attempt to process hotplug events concurrently based
on the FW interrupt.

Protect safw update function with a scan mutex.

Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Raghava Aditya Renukunta
2017-12-26 20:34:44 -08:00
committed by Martin K. Petersen
parent 6f44a22b2c
commit 3395614e48
3 changed files with 4 additions and 0 deletions
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drivers/scsi/aacraid/linit.c
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@@ -1683,6 +1683,7 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
spin_lock_init(&aac->fib_lock);
mutex_init(&aac->ioctl_mutex);
mutex_init(&aac->scan_mutex);
/*
* Map in the registers from the adapter.
*/