When the device reset handler is entered while a reset operation
is taking place, the handler exits without actually sending a
reset (TMF) to the targeted device. This behavior is incorrect
as the device is not reset. Further complicating matters is the
fact that a success is returned even when the TMF was not sent.
To fix, the state is rechecked after coming out of the reset
state. When the state is normal, a TMF will be sent out.
Signed-off-by: Matthew R. Ochs <mro...@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <ma...@linux.vnet.ibm.com>
Suggested-by: Brian King <brk...@linux.vnet.ibm.com>
---
drivers/scsi/cxlflash/main.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/drivers/scsi/cxlflash/main.c b/drivers/scsi/cxlflash/main.c
index 1625aea..922fac7 100644
--- a/drivers/scsi/cxlflash/main.c
+++ b/drivers/scsi/cxlflash/main.c
@@ -1931,6 +1931,7 @@ static int cxlflash_eh_device_reset_handler(struct
scsi_cmnd *scp)
get_unaligned_be32(&((u32 *)scp->cmnd)[2]),
get_unaligned_be32(&((u32 *)scp->cmnd)[3]));
+retry:
switch (cfg->state) {
case STATE_NORMAL:
rcr = send_tmf(afu, scp, TMF_LUN_RESET);
@@ -1939,9 +1940,7 @@ static int cxlflash_eh_device_reset_handler(struct
scsi_cmnd *scp)
break;
case STATE_RESET:
wait_event(cfg->reset_waitq, cfg->state != STATE_RESET);
- if (cfg->state == STATE_NORMAL)
- break;
- /* fall through */
+ goto retry;
default:
rc = FAILED;
break;
--
2.1.0
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