From: Colin Ian King <colin.king@canonical.com>
Date: Thu, 22 Jan 2015 11:20:40 +0000 (+0000)
Subject: scsi_debug: test always evaluates to false, || should be used instead
X-Git-Tag: v3.19-rc6~8^2~3
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=6d310dfb382a303cbaf838e1b680f55cef18ae03;p=~emulex%2Finfiniband.git

scsi_debug: test always evaluates to false, || should be used instead

cppcheck found the following issue:
(warning) Logical conjunction always evaluates to false:
  alloc_len < 4 && alloc_len > 65535.

..the test should be instead:

  if (alloc_len < 4 || alloc_len > 65536)

This error was introduced by recent commit 38d5c8336e60bf6e53a1da9
("scsi_debug: add Report supported opcodes+tmfs; Compare and write")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Douglas Gilbert <dgilbert@interlog.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---

diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c
index 9a74f425db9..4aca1b0378c 100644
--- a/drivers/scsi/scsi_debug.c
+++ b/drivers/scsi/scsi_debug.c
@@ -1623,7 +1623,7 @@ resp_rsup_opcodes(struct scsi_cmnd *scp, struct sdebug_dev_info *devip)
 	req_opcode = cmd[3];
 	req_sa = get_unaligned_be16(cmd + 4);
 	alloc_len = get_unaligned_be32(cmd + 6);
-	if (alloc_len < 4 && alloc_len > 0xffff) {
+	if (alloc_len < 4 || alloc_len > 0xffff) {
 		mk_sense_invalid_fld(scp, SDEB_IN_CDB, 6, -1);
 		return check_condition_result;
 	}