wifi: brcmfmac: unmap dma buffer in brcmf_msgbuf_alloc_pktid()

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After the DMA buffer is mapped to a physical address, address is stored
in pktids in brcmf_msgbuf_alloc_pktid(). Then, pktids is parsed in
brcmf_msgbuf_get_pktid()/brcmf_msgbuf_release_array() to obtain physaddr
and later unmap the DMA buffer. But when count is always equal to
pktids->array_size, physaddr isn't stored in pktids and the DMA buffer
will not be unmapped anyway.

Fixes: 9a1bb60250 ("brcmfmac: Adding msgbuf protocol.")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Reviewed-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20221207013114.1748936-1-shaozhengchao@huawei.com

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Zhengchao Shao 2022-12-07 09:31:14 +08:00 • committed by Kalle Valo

parent 212fde3fe7

commit b9f420032f

1 changed files with 4 additions and 1 deletions

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drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c

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