Commit 511833acfc06c013d453e288f483c682c60ffbff

Authored by Alan Stern
Committed by James Bottomley
1 parent efc7a28838

SCSI: fix regression in scsi_send_eh_cmnd()

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>
Cc: <stable@vger.kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

Showing 1 changed file with 2 additions and 2 deletions Side-by-side Diff

drivers/scsi/scsi_error.c
... ... @@ -1041,7 +1041,7 @@
1041 1041 }
1042 1042 /* signal not to enter either branch of the if () below */
1043 1043 timeleft = 0;
1044   - rtn = NEEDS_RETRY;
  1044 + rtn = FAILED;
1045 1045 } else {
1046 1046 timeleft = wait_for_completion_timeout(&done, timeout);
1047 1047 rtn = SUCCESS;
... ... @@ -1081,7 +1081,7 @@
1081 1081 rtn = FAILED;
1082 1082 break;
1083 1083 }
1084   - } else if (!rtn) {
  1084 + } else if (rtn != FAILED) {
1085 1085 scsi_abort_eh_cmnd(scmd);
1086 1086 rtn = FAILED;
1087 1087 }