linux-kernel - Re: [PATCH AUTOSEL 6.1 21/61] wifi: ath11k: initialize 'ret' in ath11k_qmi_load_file_target

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Message-ID: <Zs3GN2FH4uzzMEFY@duo.ucw.cz>
Date: Tue, 27 Aug 2024 14:27:35 +0200
From: Pavel Machek <pavel@...x.de>
To: Sasha Levin <sashal@...nel.org>
Cc: linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	Jeff Johnson <quic_jjohnson@...cinc.com>,
	Kalle Valo <quic_kvalo@...cinc.com>, kvalo@...nel.org,
	jjohnson@...nel.org, linux-wireless@...r.kernel.org,
	ath11k@...ts.infradead.org
Subject: Re: [PATCH AUTOSEL 6.1 21/61] wifi: ath11k: initialize 'ret' in
 ath11k_qmi_load_file_target_mem()

Hi!

> [ Upstream commit 199f149e97dc7be80e5eed4b232529c1d1aa8055 ]
> 
> smatch flagged the following issue:
> 
> drivers/net/wireless/ath/ath11k/qmi.c:2401 ath11k_qmi_load_file_target_mem() error: uninitialized symbol 'ret'.
> 
> The reality is that 'ret' is initialized in every path through
> ath11k_qmi_load_file_target_mem() except one, the case where the input
> 'len' is 0, and hence the "while (remaining)" loop is never entered.
> But to make sure this case is also handled, add an initializer to the
> declaration of 'ret'.
> 
> No functional changes, compile tested only.

Just a cleanup. Does not match -stable rules.

Best regards,
							Pavel
							
> +++ b/drivers/net/wireless/ath/ath11k/qmi.c
> @@ -2293,7 +2293,7 @@ static int ath11k_qmi_load_file_target_mem(struct ath11k_base *ab,
>  	struct qmi_txn txn;
>  	const u8 *temp = data;
>  	void __iomem *bdf_addr = NULL;
> -	int ret;
> +	int ret = 0;
>  	u32 remaining = len;
>  
>  	req = kzalloc(sizeof(*req), GFP_KERNEL);

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HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany

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