This is a note to let you know that I've just added the patch titled
SCSI: fix regression in scsi_send_eh_cmnd()
to the 3.18-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
scsi-fix-regression-in-scsi_send_eh_cmnd.patch
and it can be found in the queue-3.18 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 511833acfc06c013d453e288f483c682c60ffbff Mon Sep 17 00:00:00 2001
From: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>
Date: Fri, 21 Nov 2014 10:44:49 -0500
Subject: SCSI: fix regression in scsi_send_eh_cmnd()
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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: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/scsi/scsi_error.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1027,7 +1027,7 @@ 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;
}
Patches currently in stable-queue which might be from stern@xxxxxxxxxxxxxxxxxxx are
queue-3.18/scsi-fix-regression-in-scsi_send_eh_cmnd.patch
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