[PATCH] mwifiex: drop redundant null-pointer check in mwifiex_dnld_cmd_to_fw()

[PATCH] mwifiex: drop redundant null-pointer check in mwifiex_dnld_cmd_to_fw()

[Tuo Li]

There is no case in which the variable cmd_node->cmd_skb has no ->data,
and thus the variable host_cmd is guaranteed to be not NULL. Therefore,
the null-pointer check is redundant and can be dropped.

Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
Signed-off-by: Tuo Li <islituo@gmail.com>
---
 drivers/net/wireless/marvell/mwifiex/cmdevt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/cmdevt.c b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
index 3a11342a6bde..171a25742600 100644
--- a/drivers/net/wireless/marvell/mwifiex/cmdevt.c
+++ b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
@@ -187,7 +187,7 @@ static int mwifiex_dnld_cmd_to_fw(struct mwifiex_private *priv,
 	host_cmd = (struct host_cmd_ds_command *) (cmd_node->cmd_skb->data);
 
 	/* Sanity test */
-	if (host_cmd == NULL || host_cmd->size == 0) {
+	if (host_cmd->size == 0) {
 		mwifiex_dbg(adapter, ERROR,
 			    "DNLD_CMD: host_cmd is null\t"
 			    "or cmd size is 0, not sending\n");
-- 
2.25.1

Re: [PATCH] mwifiex: drop redundant null-pointer check in mwifiex_dnld_cmd_to_fw()

[Brian Norris]

On Tue, Aug 3, 2021 at 7:03 PM Tuo Li <islituo@gmail.com> wrote:
>
> There is no case in which the variable cmd_node->cmd_skb has no ->data,
> and thus the variable host_cmd is guaranteed to be not NULL. Therefore,
> the null-pointer check is redundant and can be dropped.
>
> Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
> Signed-off-by: Tuo Li <islituo@gmail.com>

Tested-by: Brian Norris <briannorris@chromium.org>
Reviewed-by: Brian Norris <briannorris@chromium.org>

Re: [PATCH] mwifiex: drop redundant null-pointer check in mwifiex_dnld_cmd_to_fw()

[Kalle Valo]

Tuo Li <islituo@gmail.com> wrote:

> There is no case in which the variable cmd_node->cmd_skb has no ->data,
> and thus the variable host_cmd is guaranteed to be not NULL. Therefore,
> the null-pointer check is redundant and can be dropped.
> 
> Reported-by: TOTE Robot <oslab@tsinghua.edu.cn>
> Signed-off-by: Tuo Li <islituo@gmail.com>
> Tested-by: Brian Norris <briannorris@chromium.org>
> Reviewed-by: Brian Norris <briannorris@chromium.org>

Patch applied to wireless-drivers-next.git, thanks.

118934041c5f mwifiex: drop redundant null-pointer check in mwifiex_dnld_cmd_to_fw()

-- 
https://patchwork.kernel.org/project/linux-wireless/patch/20210804020305.29812-1-islituo@gmail.com/

https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches