From: Li Zefan <lizf@cn.fujitsu.com>
Date: Mon, 9 Mar 2009 09:42:45 +0000 (+0100)
Subject: block: fix memory leak in bio_clone()
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=059ea3318c8ede71851a52b4359fbf1ab0cec301;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

block: fix memory leak in bio_clone()

If bio_integrity_clone() fails, bio_clone() returns NULL without freeing
the newly allocated bio.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
---

diff --git a/fs/bio.c b/fs/bio.c
index cf747378b977..d4f06327c810 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -465,8 +465,10 @@ struct bio *bio_clone(struct bio *bio, gfp_t gfp_mask)
 
 		ret = bio_integrity_clone(b, bio, gfp_mask, fs_bio_set);
 
-		if (ret < 0)
+		if (ret < 0) {
+			bio_put(b);
 			return NULL;
+		}
 	}
 
 	return b;