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Re: [Qemu-trivial] [Qemu-devel] [PATCH] qcow2: remove useless NULL check
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From: |
Eric Blake |
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Subject: |
Re: [Qemu-trivial] [Qemu-devel] [PATCH] qcow2: remove useless NULL check |
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Date: |
Wed, 8 Feb 2017 07:53:14 -0600 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0 |
On 02/08/2017 02:09 AM, Marc-André Lureau wrote:
> g_strdup() already handles the case where the argument is NULL.
>
> Signed-off-by: Marc-André Lureau <address@hidden>
> ---
> block/qcow2.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
Reviewed-by: Eric Blake <address@hidden>
>
> diff --git a/block/qcow2.c b/block/qcow2.c
> index 96fb8a8f16..9114218030 100644
> --- a/block/qcow2.c
> +++ b/block/qcow2.c
> @@ -2016,8 +2016,8 @@ static int qcow2_change_backing_file(BlockDriverState
> *bs,
> g_free(s->image_backing_file);
> g_free(s->image_backing_format);
>
> - s->image_backing_file = backing_file ? g_strdup(bs->backing_file) : NULL;
> - s->image_backing_format = backing_fmt ? g_strdup(bs->backing_format) :
> NULL;
> + s->image_backing_file = g_strdup(bs->backing_file);
> + s->image_backing_format = g_strdup(bs->backing_format);
>
> return qcow2_update_header(bs);
> }
>
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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