linux-kernel - [PATCH 06/16] md/bitmap: Return directly after a failed kzalloc() in bitmap

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue, 27 Sep 2016 18:53:20 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-raid@...r.kernel.org, Shaohua Li <shli@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org,
        Julia Lawall <julia.lawall@...6.fr>
Subject: [PATCH 06/16] md/bitmap: Return directly after a failed kzalloc() in
 bitmap_resize()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 27 Sep 2016 15:21:23 +0200

* Return directly after a call of the function "kzalloc" failed here.

* Delete two assignments for the local variable "ret" and the jump
  target "err" which became unnecessary with this refactoring.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/md/bitmap.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c
index 5092bc0..2d30c83 100644
--- a/drivers/md/bitmap.c
+++ b/drivers/md/bitmap.c
@@ -2037,10 +2037,9 @@ int bitmap_resize(struct bitmap *bitmap, sector_t blocks,
 	pages = DIV_ROUND_UP(chunks, PAGE_COUNTER_RATIO);
 
 	new_bp = kzalloc(pages * sizeof(*new_bp), GFP_KERNEL);
-	ret = -ENOMEM;
 	if (!new_bp) {
 		bitmap_file_unmap(&store);
-		goto err;
+		return -ENOMEM;
 	}
 
 	if (!init)
@@ -2160,8 +2159,6 @@ int bitmap_resize(struct bitmap *bitmap, sector_t blocks,
 		bitmap_unplug(bitmap);
 		bitmap->mddev->pers->quiesce(bitmap->mddev, 0);
 	}
-	ret = 0;
-err:
 	return ret;
 }
 EXPORT_SYMBOL_GPL(bitmap_resize);
-- 
2.10.0