From: Thomas Fourier <fourier.thomas@gmail.com>
Cc: Thomas Fourier <fourier.thomas@gmail.com>,
stable@vger.kernel.org,
Arend van Spriel <arend.vanspriel@broadcom.com>,
Johannes Berg <johannes.berg@intel.com>,
Simon Horman <horms@kernel.org>,
"John W. Linville" <linville@tuxdriver.com>,
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 [thread overview]
Message-ID: <20260218130741.46566-3-fourier.thomas@gmail.com> (raw)
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: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
---
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
next reply other threads:[~2026-02-18 13:15 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-18 13:07 Thomas Fourier [this message]
2026-03-28 11:08 ` [PATCH net] wifi: brcmsmac: Fix dma_free_coherent() size Arend van Spriel
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