linux-kernel - [PATCH wireless 2/9] wifi: brcmfmac: avoid garbage value of 'status' in brcmf_c_download

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Message-Id: <20240702122450.2213833-3-suhui@nfschina.com>
Date: Tue,  2 Jul 2024 20:24:45 +0800
From: Su Hui <suhui@...china.com>
To: arend.vanspriel@...adcom.com,
	kvalo@...nel.org
Cc: Su Hui <suhui@...china.com>,
	quic_jjohnson@...cinc.com,
	u.kleine-koenig@...gutronix.de,
	stanley.hsu@...ress.com,
	linux-wireless@...r.kernel.org,
	brcm80211@...ts.linux.dev,
	brcm80211-dev-list.pdl@...adcom.com,
	linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH wireless 2/9] wifi: brcmfmac: avoid garbage value of 'status' in brcmf_c_download_blob()

brcmf_fil_iovar_int_get() reads the value of 'status' and passes it
to brcmf_fil_iovar_data_get(). The garbage value of 'status' will
finally be copied to 'ifp->drvr->proto_buf'. Initialize 'status' to
avoid garbage value.

Fixes: fdd0bd88ceae ("brcmfmac: add CLM download support")
Signed-off-by: Su Hui <suhui@...china.com>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index b24faae35873..03277131ef2b 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -127,7 +127,7 @@ static int brcmf_c_download_blob(struct brcmf_if *ifp,
 	u32 datalen;
 	u32 cumulative_len;
 	u16 dl_flag = DL_BEGIN;
-	u32 status;
+	u32 status = 0;
 	s32 err;
 
 	brcmf_dbg(TRACE, "Enter\n");
-- 
2.30.2