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btrfs: use kvzalloc() to allocate clone_roots in btrfs_ioctl_send() 

commit 8eb2fd0015 upstream.

btrfs_ioctl_send() used open-coded kvzalloc implementation earlier.
The code was accidentally replaced with kzalloc() call [1]. Restore
the original code by using kvzalloc() to allocate sctx->clone_roots.

[1] https://patchwork.kernel.org/patch/9757891/#20529627

Fixes: 818e010bf9 ("btrfs: replace opencoded kvzalloc with the helper")
CC: stable@vger.kernel.org # 4.14+
Signed-off-by: Denis Efremov <efremov@linux.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
5.4-rM2-2.2.x-imx-squashed
Denis Efremov 2020-09-21 20:03:35 +03:00 committed by Greg Kroah-Hartman
parent 6ec4b82fc3
commit 4b82b8aba0
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/send.c
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@ -7352,7 +7352,7 @@ long btrfs_ioctl_send(struct file *mnt_file, struct btrfs_ioctl_send_args *arg)
alloc_size = sizeof(struct clone_root) * (arg->clone_sources_count + 1);
sctx->clone_roots = kzalloc(alloc_size, GFP_KERNEL);
sctx->clone_roots = kvzalloc(alloc_size, GFP_KERNEL);
if (!sctx->clone_roots) {
ret = -ENOMEM;
goto out;