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[128.93.82.204]) by smtp.googlemail.com with ESMTPSA id ffacd0b85a97d-43796acffcesm38768246f8f.37.2026.02.18.05.15.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Feb 2026 05:15:26 -0800 (PST) From: Thomas Fourier To: Cc: Thomas Fourier , stable@vger.kernel.org, Arend van Spriel , Johannes Berg , Simon Horman , "John W. Linville" , linux-wireless@vger.kernel.org, brcm80211@lists.linux.dev, brcm80211-dev-list.pdl@broadcom.com, linux-kernel@vger.kernel.org Subject: [PATCH net] wifi: brcmsmac: Fix dma_free_coherent() size Date: Wed, 18 Feb 2026 14:07:37 +0100 Message-ID: <20260218130741.46566-3-fourier.thomas@gmail.com> X-Mailer: git-send-email 2.43.0 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit dma_alloc_consistent() may change the size to align it. The new size is saved in alloced. Change the free size to match the allocation size. Fixes: 5b435de0d786 ("net: wireless: add brcm80211 drivers") Cc: Signed-off-by: Thomas Fourier --- drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c index c739bf7463b3..13d0d6b68238 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/dma.c @@ -483,7 +483,7 @@ static void *dma_ringalloc(struct dma_info *di, u32 boundary, uint size, if (((desc_strtaddr + size - 1) & boundary) != (desc_strtaddr & boundary)) { *alignbits = dma_align_sizetobits(size); - dma_free_coherent(di->dmadev, size, va, *descpa); + dma_free_coherent(di->dmadev, *alloced, va, *descpa); va = dma_alloc_consistent(di, size, *alignbits, alloced, descpa); } -- 2.43.0