From: Eric Sesterhenn <snakebyte@gmx.de>
To: linux-kernel@vger.kernel.org
Cc: osst@riede.org
Subject: [Patch] Signdness issue in drivers/scsi/osst.c
Date: Sat, 19 Aug 2006 21:19:48 +0200 [thread overview]
Message-ID: <1156015188.19657.7.camel@alice> (raw)
Hi,
another signdness warning from gcc 4.1
drivers/scsi/osst.c:5154: warning: comparison of unsigned expression < 0 is always false
The problem is that blk is defined as unsigned, but all usages of it
are normal int cases. osst_get_frame_position() and osst_get_sector()
return ints and can return negative values. If blk stays an unsigned int,
the error check is useless.
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
--- linux-2.6.18-rc4/drivers/scsi/osst.c.orig 2006-08-19 21:16:48.000000000 +0200
+++ linux-2.6.18-rc4/drivers/scsi/osst.c 2006-08-19 21:16:56.000000000 +0200
@@ -4843,8 +4843,7 @@ static int os_scsi_tape_close(struct ino
static int osst_ioctl(struct inode * inode,struct file * file,
unsigned int cmd_in, unsigned long arg)
{
- int i, cmd_nr, cmd_type, retval = 0;
- unsigned int blk;
+ int i, cmd_nr, cmd_type, blk, retval = 0;
struct st_modedef * STm;
struct st_partstat * STps;
struct osst_request * SRpnt = NULL;
next reply other threads:[~2006-08-19 19:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-19 19:19 Eric Sesterhenn [this message]
2006-08-20 18:18 ` Alan Cox
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