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| author | Alan Stern <stern@rowland.harvard.edu> | 2014-11-21 10:44:49 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-01-27 08:29:38 -0800 |
| commit | f8db847bcc2c924496e97c052368f83d2b18e0f5 (patch) | |
| tree | d2f390266adc574c540d7020fbdeac808a16d05d /drivers | |
| parent | 7fbdd0ef30d4515f6638a80b1a3e76713e2c88db (diff) | |
| download | lwn-f8db847bcc2c924496e97c052368f83d2b18e0f5.tar.gz lwn-f8db847bcc2c924496e97c052368f83d2b18e0f5.zip | |
SCSI: fix regression in scsi_send_eh_cmnd()
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@rowland.harvard.edu>
Reported-by: Андрей Аладьев <aladjev.andrew@gmail.com>
Tested-by: Андрей Аладьев <aladjev.andrew@gmail.com>
Fixes: ac61d19559349e205dad7b5122b281419aa74a82
Acked-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/scsi_error.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index bc5ff6ff9c79..01a79473350a 100644 --- 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; } |