linux-kernel - [PATCH 08/29] staging: lustre: libcfs: invert test condition for libcfs

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Message-Id: <1458687856-24959-9-git-send-email-jsimmons@infradead.org>
Date:	Tue, 22 Mar 2016 19:03:55 -0400
From:	James Simmons <jsimmons@...radead.org>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	devel@...verdev.osuosl.org,
	Andreas Dilger <andreas.dilger@...el.com>,
	Oleg Drokin <oleg.drokin@...el.com>
Cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Lustre Development List <lustre-devel@...ts.lustre.org>,
	Liang Zhen <liang.zhen@...el.com>
Subject: [PATCH 08/29] staging: lustre: libcfs: invert test condition for libcfs_ioctl

From: Liang Zhen <liang.zhen@...el.com>

Invert the test of error returned by the handle_ioctl pointer.
This reduces the code by one indentation level.

Signed-off-by: Liang Zhen <liang.zhen@...el.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435
Reviewed-on: http://review.whamcloud.com/11313
Reviewed-by: Bobi Jam <bobijam@...il.com>
Reviewed-by: Johann Lombardi <johann.lombardi@...el.com>
Reviewed-by: Oleg Drokin <oleg.drokin@...el.com>
---
 drivers/staging/lustre/lnet/libcfs/module.c |   13 +++++++------
 1 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/staging/lustre/lnet/libcfs/module.c b/drivers/staging/lustre/lnet/libcfs/module.c
index cce6ce3..97fc905 100644
--- a/drivers/staging/lustre/lnet/libcfs/module.c
+++ b/drivers/staging/lustre/lnet/libcfs/module.c
@@ -165,12 +165,13 @@ static int libcfs_ioctl(struct cfs_psdev_file *pfile, unsigned long cmd,
 		down_read(&ioctl_list_sem);
 		list_for_each_entry(hand, &ioctl_list, item) {
 			err = hand->handle_ioctl(cmd, hdr);
-			if (err != -EINVAL) {
-				if (err == 0)
-					err = libcfs_ioctl_popdata(arg,
-							hdr, hdr->ioc_len);
-				break;
-			}
+			if (err == -EINVAL)
+				continue;
+
+			if (!err)
+				err = libcfs_ioctl_popdata(arg, hdr,
+							   hdr->ioc_len);
+			break;
 		}
 		up_read(&ioctl_list_sem);
 		break; }
-- 
1.7.1