linux-ext4 - [PATCH] ext2: check err when partial != NULL

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Message-ID: <20191105045100.7104-1-cgxu519@mykernel.net>
Date:   Tue,  5 Nov 2019 12:51:00 +0800
From:   Chengguang Xu <cgxu519@...ernel.net>
To:     jack@...e.com
Cc:     linux-ext4@...r.kernel.org, Chengguang Xu <cgxu519@...ernel.net>
Subject: [PATCH] ext2: check err when partial != NULL

Check err when partial == NULL is meaningless because
partial == NULL means getting branch successfully without
error.

Signed-off-by: Chengguang Xu <cgxu519@...ernel.net>
---
 fs/ext2/inode.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 7004ce581a32..a16c53655e77 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -701,10 +701,13 @@ static int ext2_get_blocks(struct inode *inode,
 		if (!partial) {
 			count++;
 			mutex_unlock(&ei->truncate_mutex);
-			if (err)
-				goto cleanup;
 			goto got_it;
 		}
+
+		if (err) {
+			mutex_unlock(&ei->truncate_mutex);
+			goto cleanup;
+		}
 	}
 
 	/*
-- 
2.20.1