Re: [PATCH 4/4] ibmvfc: store return code of H_FREE_SUB_CRQ during cleanup

On 2/16/21 6:58 AM, Brian King wrote:

On 2/11/21 12:57 PM, Tyrel Datwyler wrote:

quoted

diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c
index ba6fcf9cbc57..23b803ac4a13 100644
--- a/drivers/scsi/ibmvscsi/ibmvfc.c
+++ b/drivers/scsi/ibmvscsi/ibmvfc.c

@@ -5670,7 +5670,7 @@ static int ibmvfc_register_scsi_channel(struct ibmvfc_host *vhost,
 
 irq_failed:
 	do {
-		plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address, scrq->cookie);
+		rc = plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address, scrq->cookie);
 	} while (rc == H_BUSY || H_IS_LONG_BUSY(rc));

Other places in the driver where we get a busy return code back we have an msleep(100).
Should we be doing that here as well?

Indeed, and actually even better would be to use rtas_busy_delay() which will
perform the sleep with the correct ms delay, and marks itself with the
might_sleep() macro.

-Tyrel

Thanks,

Brian