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From: Valdis Kletnieks <valdis.kletnieks@vt.edu>
To: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
Cc: linux-fsdevel@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	devel@driverdev.osuosl.org,
	Valdis Kletnieks <valdis.kletnieks@vt.edu>,
	linux-kernel@vger.kernel.org
Subject: [PATCH v2 03/10] staging: exfat: Clean up return codes - FFS_EOF
Date: Sun,  3 Nov 2019 20:44:59 -0500
Message-ID: <20191104014510.102356-4-Valdis.Kletnieks@vt.edu> (raw)
In-Reply-To: <20191104014510.102356-1-Valdis.Kletnieks@vt.edu>

Convert FFS_EOF to return 0 for a zero-length read() as per 'man 2 read'.

Signed-off-by: Valdis Kletnieks <Valdis.Kletnieks@vt.edu>
---
 drivers/staging/exfat/exfat.h       | 1 -
 drivers/staging/exfat/exfat_super.c | 2 +-
 2 files changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/staging/exfat/exfat.h b/drivers/staging/exfat/exfat.h
index 286605262345..292af85e3cd2 100644
--- a/drivers/staging/exfat/exfat.h
+++ b/drivers/staging/exfat/exfat.h
@@ -217,7 +217,6 @@ static inline u16 get_row_index(u16 i)
 #define FFS_INVALIDFID          8
 #define FFS_NOTOPENED           12
 #define FFS_MAXOPENED           13
-#define FFS_EOF                 15
 #define FFS_ERROR               19
 
 #define NUM_UPCASE              2918
diff --git a/drivers/staging/exfat/exfat_super.c b/drivers/staging/exfat/exfat_super.c
index d6d5f0fd47fd..7c99d1f8cba8 100644
--- a/drivers/staging/exfat/exfat_super.c
+++ b/drivers/staging/exfat/exfat_super.c
@@ -723,7 +723,7 @@ static int ffsReadFile(struct inode *inode, struct file_id_t *fid, void *buffer,
 	if (count == 0) {
 		if (rcount)
 			*rcount = 0;
-		ret = FFS_EOF;
+		ret = 0;
 		goto out;
 	}
 
-- 
2.24.0.rc1

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Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-04  1:44 [PATCH v2 00/10] staging: exfat: Clean up return codes, revisited Valdis Kletnieks
2019-11-04  1:44 ` [PATCH v2 01/10] staging: exfat: Clean up return codes - FFS_FORMATERR Valdis Kletnieks
2019-11-05 17:05   ` Greg Kroah-Hartman
2019-11-05 22:20     ` Valdis Klētnieks
2019-11-04  1:44 ` [PATCH v2 02/10] staging: exfat: Clean up return codes - FFS_MEDIAERR Valdis Kletnieks
2019-11-04  1:44 ` Valdis Kletnieks [this message]
2019-11-04  1:45 ` [PATCH v2 04/10] staging: exfat: Clean up return codes - FFS_INVALIDFID Valdis Kletnieks
2019-11-04  1:45 ` [PATCH v2 05/10] staging: exfat: Clean up return codes - FFS_ERROR Valdis Kletnieks
2019-11-04  1:45 ` [PATCH v2 06/10] staging: exfat: Clean up return codes - remove unused codes Valdis Kletnieks
2019-11-04  1:45 ` [PATCH v2 07/10] staging: exfat: Clean up return codes - FFS_SUCCESS Valdis Kletnieks
2019-11-04 10:04   ` Dan Carpenter
2019-11-04 10:53     ` Valdis Klētnieks
2019-11-04 10:56       ` Dan Carpenter
2019-11-04  1:45 ` [PATCH v2 08/10] staging: exfat: Collapse redundant return code translations Valdis Kletnieks
2019-11-04  1:45 ` [PATCH v2 09/10] staging: exfat: Correct return code Valdis Kletnieks
2019-11-04  1:45 ` [PATCH 10/10] errno.h: Provide EFSCORRUPTED for everybody Valdis Kletnieks
2019-11-04  2:09   ` Gao Xiang
2019-11-05  0:33   ` Christoph Hellwig
2019-11-05  0:54     ` Valdis Klētnieks
2019-11-05  3:43   ` Chao Yu
2019-11-06 21:37     ` Pavel Machek
2019-11-05 16:59 ` [PATCH v2 00/10] staging: exfat: Clean up return codes, revisited Greg Kroah-Hartman

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