From: Keith Busch <kbusch@kernel.org>
To: Tokunori Ikegami <ikegami.t@gmail.com>
Cc: linux-nvme@lists.infradead.org
Subject: Re: [PATCH] nvme: initialize identify ns data to NULL
Date: Tue, 26 Mar 2024 08:37:07 -0700 [thread overview]
Message-ID: <ZgLro-TUD821wu16@kbusch-mbp.dhcp.thefacebook.com> (raw)
In-Reply-To: <20240325154503.11510-1-ikegami.t@gmail.com>
On Tue, Mar 26, 2024 at 12:45:03AM +0900, Tokunori Ikegami wrote:
> static int ns_head_update_nuse(struct nvme_ns_head *head)
> {
> - struct nvme_id_ns *id;
> + struct nvme_id_ns *id = NULL;
> struct nvme_ns *ns;
> int srcu_idx, ret = -EWOULDBLOCK;
This is a redundant setting. The first thing that happens to "id" is
reference passed to nvme_identify_ns, and the first thing it does is
this:
*id = kmalloc(sizeof(**id), GFP_KERNEL);
So either kmalloc succeeds and overwrites your NULL setting, or malloc
fails and sets it to NULL again.
next prev parent reply other threads:[~2024-03-26 15:37 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20240325154544epcas5p4acf7f376241637872a433314489586fa@epcas5p4.samsung.com>
2024-03-25 15:45 ` [PATCH] nvme: initialize identify ns data to NULL Tokunori Ikegami
2024-03-26 8:20 ` Sagi Grimberg
2024-03-26 13:35 ` Tokunori Ikegami
2024-03-26 8:50 ` Kanchan Joshi
2024-03-26 13:51 ` Tokunori Ikegami
[not found] ` <a92a1493-29ae-4f89-b17b-54d03ec0becc@gmail.com>
2024-03-26 14:02 ` Kanchan Joshi
2024-03-26 14:56 ` Tokunori Ikegami
2024-03-26 15:37 ` Keith Busch [this message]
2024-03-26 15:54 ` Tokunori Ikegami
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