Re: [PATCH] btrfs: remove unneeded NULL initializer for struct fs_path

From: David Sterba
Date: Tue Sep 29 2015 - 08:33:42 EST


On Sat, Sep 26, 2015 at 12:05:19PM +0000, Alexandru Moise wrote:
> fs_path_alloc() either returns an alloc'ed struct fs_path
> or NULL, no need to initialize the pointer to NULL.
>
> Signed-off-by: Alexandru Moise <00moses.alexander00@xxxxxxxxx>
> ---
> fs/btrfs/send.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/btrfs/send.c b/fs/btrfs/send.c
> index aa72bfd..0019c90 100644
> --- a/fs/btrfs/send.c
> +++ b/fs/btrfs/send.c
> @@ -2230,7 +2230,7 @@ static int get_cur_path(struct send_ctx *sctx, u64 ino, u64 gen,
> struct fs_path *dest)
> {
> int ret = 0;
> - struct fs_path *name = NULL;
> + struct fs_path *name;

I'd rather see all such instances fixed in one patch. Quick grep
revealed a few more. OTOH this kind of extra initialization is harmless
and sometimes help readability, it's clear that he value is zeroed.
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