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From: "Valdis Klētnieks" <valdis.kletnieks@vt.edu>
To: Joe Perches <joe@perches.com>
Cc: linux-fsdevel@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 00/15] staging: exfat: Clean up return codes
Date: Thu, 24 Oct 2019 12:45:01 -0400	[thread overview]
Message-ID: <1116230.1571935501@turing-police> (raw)
In-Reply-To: <db3315695d3ea493e05f63f3b21fb3a1482293fd.camel@perches.com>


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On Thu, 24 Oct 2019 09:23:24 -0700, Joe Perches said:

> All well and good, but does converting the error code from
> positive to negative have any impact on any of the code
> paths that use these return values?
>
> 	if (error > 0)
> vs
> 	if (error < 0)

I was keeping an eye open for that, and didn't see any.

An interesting case is the FFS_EOF patch, which fixes an actual bug. If you did
a read for length 0, it would return FFS_EOF (==15) - which would be
interpreted as the number of bytes returned by read().


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      reply	other threads:[~2019-10-24 16:45 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-24 15:53 [PATCH 00/15] staging: exfat: Clean up return codes Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 01/15] staging: exfat: Clean up return codes - FFS_FULL Valdis Kletnieks
2019-10-24 17:59   ` Matthew Wilcox
2019-10-24 18:39     ` Valdis Klētnieks
2019-10-24 15:53 ` [PATCH 02/15] staging: exfat: Clean up return codes - FFS_NOTFOUND Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 03/15] staging: exfat: Clean up return codes - FFS_DIRBUSY Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 04/15] staging: exfat: Clean up return codes - FFS_PERMISSIONERR Valdis Kletnieks
2019-10-24 16:23   ` Joe Perches
2019-10-24 16:27     ` Valdis Klētnieks
2019-10-25 10:14       ` Dan Carpenter
2019-10-24 15:53 ` [PATCH 05/15] staging: exfat: Clean up return codes - FFS_NAMETOOLONG Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 06/15] staging: exfat: Clean up return codes - FFS_FILEEXIST Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 07/15] staging: exfat: Clean up return codes - FFS_INVALIDPATH Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 08/15] staging: exfat: Clean up return code - FFS_MEMORYERR Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 09/15] staging: exfat: Clean up return codes - FFS_FORMATERR Valdis Kletnieks
2019-10-25  2:56   ` Greg Kroah-Hartman
2019-10-24 15:53 ` [PATCH 10/15] staging: exfat: Clean up return codes - FFS_MEDIAERR Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 11/15] staging: exfat: Clean up return codes - FFS_EOF Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 12/15] staging: exfat: Clean up return codes - FFS_INVALIDFID Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 13/15] staging: exfat: Clean up return codes - FFS_ERROR Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 14/15] staging: exfat: Clean up return codes - remove unused codes Valdis Kletnieks
2019-10-24 15:53 ` [PATCH 15/15] staging: exfat: Clean up return codes - FFS_SUCCESS Valdis Kletnieks
2019-10-24 16:29   ` Joe Perches
2019-10-24 16:46     ` Valdis Klētnieks
2019-10-24 16:23 ` [PATCH 00/15] staging: exfat: Clean up return codes Joe Perches
2019-10-24 16:45   ` Valdis Klētnieks [this message]

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