linux-kernel - [PATCH 12/13] staging: lustre: return proper error code for libcfs_kkuc_msg

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Date:	Sun,  8 Nov 2015 14:17:17 -0500
From:	James Simmons <jsimmons@...radead.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org, Oleg Drokin <oleg.drokin@...el.com>,
	Andreas Dilger <andreas.dilger@...el.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	lustre-devel@...ts.lustre.org,
	James Simmons <jsimmons@...radead.org>
Subject: [PATCH 12/13] staging: lustre: return proper error code for libcfs_kkuc_msg_put

The functon libcfs_kkuc_msg_put() returns -ENOSYS which is not
correct. Return -ENXIO instead if the kuc header is corrupt.

Signed-off-by: James Simmons <jsimmons@...radead.org>
---
 .../staging/lustre/lustre/obdclass/kernelcomm.c    |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/lustre/lustre/obdclass/kernelcomm.c b/drivers/staging/lustre/lustre/obdclass/kernelcomm.c
index 46cb81a..281cfd6 100644
--- a/drivers/staging/lustre/lustre/obdclass/kernelcomm.c
+++ b/drivers/staging/lustre/lustre/obdclass/kernelcomm.c
@@ -57,14 +57,14 @@ int libcfs_kkuc_msg_put(struct file *filp, void *payload)
 	ssize_t count = kuch->kuc_msglen;
 	loff_t offset = 0;
 	mm_segment_t fs;
-	int rc = -ENOSYS;
+	int rc = -ENXIO;
 
 	if (!filp || IS_ERR(filp))
 		return -EBADF;
 
 	if (kuch->kuc_magic != KUC_MAGIC) {
 		CERROR("KernelComm: bad magic %x\n", kuch->kuc_magic);
-		return -ENOSYS;
+		return rc;
 	}
 
 	fs = get_fs();
-- 
1.7.1

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