linux-kernel - [PATCH v2 2/2] staging: lustre: restore initialization of return code

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Message-Id: <20161025212310.2346367-2-arnd@arndb.de>
Date:   Tue, 25 Oct 2016 23:22:31 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Oleg Drokin <oleg.drokin@...el.com>,
        Patrick Farrell <paf@...y.com>, lustre-devel@...ts.lustre.org,
        Bobi Jam <bobijam@...mail.com>,
        James Simmons <uja.ornl@...oo.com>, Olaf Weber <olaf@....com>,
        James Simmons <jsimmons@...radead.org>,
        Jinshan Xiong <jinshan.xiong@...el.com>,
        "John L . Hammond" <john.hammond@...el.com>,
        Liang Zhen <liang.zhen@...el.com>,
        Arnd Bergmann <arnd@...db.de>,
        Andreas Dilger <andreas.dilger@...el.com>,
        Bobi Jam <bobijam.xu@...el.com>, devel@...verdev.osuosl.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/2] staging: lustre: restore initialization of return code

A recent rework removed the initialization of the successful return
code from lov_getstripe:

drivers/staging/lustre/lustre/lov/lov_pack.c: In function 'lov_getstripe':
drivers/staging/lustre/lustre/lov/lov_pack.c:426:9: error: 'rc' may be used uninitialized in this function [-Werror=maybe-uninitialized]
drivers/staging/lustre/lustre/lov/lov_pack.c:313:6: note: 'rc' was declared here

This adds it back.

Fixes: e10a431b3fd0 ("staging: lustre: lov: move LSM to LOV layer")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/staging/lustre/lustre/lov/lov_pack.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index 17bceadd66f8..ccc1fae35791 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -418,6 +418,8 @@ int lov_getstripe(struct lov_object *obj, struct lov_stripe_md *lsm,
 	((struct lov_user_md *)lmmk)->lmm_stripe_count = lum.lmm_stripe_count;
 	if (copy_to_user(lump, lmmk, lmm_size))
 		rc = -EFAULT;
+	else
+		rc = 0;
 
 out_free:
 	kvfree(lmmk);
-- 
2.9.0