@@ -21,6 +21,7 @@
#include <linux/bsg-lib.h>
#include <asm/firmware.h>
#include <asm/irq.h>
+#include <asm/rtas.h>
#include <asm/vio.h>
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -5670,8 +5671,8 @@ 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);
- } while (rc == H_BUSY || H_IS_LONG_BUSY(rc));
+ rc = plpar_hcall_norets(H_FREE_SUB_CRQ, vdev->unit_address, scrq->cookie);
+ } while (rtas_busy_delay(rc));
reg_failed:
ibmvfc_free_queue(vhost, scrq);
LEAVE;
The H_FREE_SUB_CRQ hypercall can return a retry delay return code that indicates the call needs to be retried after a specific amount of time delay. The error path to free a sub-CRQ in case of a failure during channel registration fails to capture the return code of H_FREE_SUB_CRQ which will result in the delay loop being skipped in the case of a retry delay return code. Store the return code result of the H_FREE_SUB_CRQ call such that the return code check in the delay loop evaluates a meaningful value. Also, use the rtas_busy_delay() to check the rc value and delay for the appropriate amount of time. Fixes: 9288d35d70b5 ("ibmvfc: map/request irq and register Sub-CRQ interrupt handler") Signed-off-by: Tyrel Datwyler <tyreld@linux.ibm.com> --- drivers/scsi/ibmvscsi/ibmvfc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)