[PATCH 5.18 1064/1095] ext4: use kmemdup() to replace kmalloc + memcpy
From: Greg Kroah-Hartman
Date: Mon Aug 15 2022 - 19:39:15 EST
From: Shuqi Zhang <zhangshuqi3@xxxxxxxxxx>
[ Upstream commit 4efd9f0d120c55b08852ee5605dbb02a77089a5d ]
Replace kmalloc + memcpy with kmemdup()
Signed-off-by: Shuqi Zhang <zhangshuqi3@xxxxxxxxxx>
Reviewed-by: Ritesh Harjani <ritesh.list@xxxxxxxxx>
Link: https://lore.kernel.org/r/20220525030120.803330-1-zhangshuqi3@xxxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/ext4/xattr.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c
index b57fd07fbdba..d92d50de5a01 100644
--- a/fs/ext4/xattr.c
+++ b/fs/ext4/xattr.c
@@ -1887,11 +1887,10 @@ ext4_xattr_block_set(handle_t *handle, struct inode *inode,
unlock_buffer(bs->bh);
ea_bdebug(bs->bh, "cloning");
- s->base = kmalloc(bs->bh->b_size, GFP_NOFS);
+ s->base = kmemdup(BHDR(bs->bh), bs->bh->b_size, GFP_NOFS);
error = -ENOMEM;
if (s->base == NULL)
goto cleanup;
- memcpy(s->base, BHDR(bs->bh), bs->bh->b_size);
s->first = ENTRY(header(s->base)+1);
header(s->base)->h_refcount = cpu_to_le32(1);
s->here = ENTRY(s->base + offset);
--
2.35.1