From d72b1a4a7b43686e928fc4c27d742ef875e9c202 Mon Sep 17 00:00:00 2001 From: Balsundar P Date: Tue, 15 Oct 2019 11:52:02 +0530 Subject: [PATCH] scsi: aacraid: check adapter health Currently driver waits for the command IOCTL from the firmware and if the firmware enters nonresponsive state, the driver doesn't respond till the firmware is responsive again. Check that firmware is alive, otherwise return -EBUSY. [mkp: clarified commit desc] Link: https://lore.kernel.org/r/1571120524-6037-6-git-send-email-balsundar.p@microsemi.com Signed-off-by: Balsundar P Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/linit.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 40f78509ca945..55a55c56fea90 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -612,9 +612,13 @@ static struct device_attribute *aac_dev_attrs[] = { static int aac_ioctl(struct scsi_device *sdev, unsigned int cmd, void __user *arg) { + int retval; struct aac_dev *dev = (struct aac_dev *)sdev->host->hostdata; if (!capable(CAP_SYS_RAWIO)) return -EPERM; + retval = aac_adapter_check_health(dev); + if (retval) + return -EBUSY; return aac_do_ioctl(dev, cmd, arg); } -- 2.39.5