3.16.7-ckt5 -stable review patch. If anyone has any objections, please let me know.
------------------
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
commit 511833acfc06c013d453e288f483c682c60ffbff upstream.
Commit ac61d1955934 (scsi: set correct completion code in
scsi_send_eh_cmnd()) introduced a bug. It changed the stored return
value from a queuecommand call, but it didn't take into account that
the return value was used again later on. This patch fixes the bug by
changing the later usage.
There is a big comment in the middle of scsi_send_eh_cmnd() which
does a good job of explaining how the routine works. But it mentions
a "rtn = FAILURE" value that doesn't exist in the code. This patch
adjusts the code to match the comment (I assume the comment is right
and the code is wrong).
This fixes Bugzilla #88341.
Signed-off-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Reported-by: Андрей Аладьев <aladjev.andrew@xxxxxxxxx>
Tested-by: Андрей Аладьев <aladjev.andrew@xxxxxxxxx>
Fixes: ac61d19559349e205dad7b5122b281419aa74a82
Acked-by: Hannes Reinecke <hare@xxxxxxx>
Signed-off-by: James Bottomley <JBottomley@xxxxxxxxxxxxx>
Signed-off-by: Luis Henriques <luis.henriques@xxxxxxxxxxxxx>
---
drivers/scsi/scsi_error.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index b350eb8ec898..f0c7a970547f 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1026,7 +1026,7 @@ retry:
}
/* signal not to enter either branch of the if () below */
timeleft = 0;
- rtn = NEEDS_RETRY;
+ rtn = FAILED;
} else {
timeleft = wait_for_completion_timeout(&done, timeout);
rtn = SUCCESS;
@@ -1067,7 +1067,7 @@ retry:
rtn = FAILED;
break;
}
- } else if (!rtn) {
+ } else if (rtn != FAILED) {
scsi_abort_eh_cmnd(scmd);
rtn = FAILED;
}
--
2.1.4
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