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net: ethernet: ec_bhf: Fix dma_free_coherent() dma handle

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dma_free_coherent() in error path takes priv->rx_buf.alloc_len as
the dma handle. This would lead to improper unmapping of the buffer.

Change the dma handle to priv->rx_buf.alloc_phys.

Fixes: 6af55ff52b ("Driver for Beckhoff CX5020 EtherCAT master module.")
Cc: <stable@vger.kernel.org>
Signed-off-by: Thomas Fourier <fourier.thomas@gmail.com>
Link: https://patch.msgid.link/20260213164340.77272-2-fourier.thomas@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Thomas Fourier
2026-02-13 17:43:39 +01:00
committed by Jakub Kicinski
parent e3f000f0de
commit ffe68c3766
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ethernet/ec_bhf.c
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@@ -423,7 +423,7 @@ static int ec_bhf_open(struct net_device *net_dev)
error_rx_free:
dma_free_coherent(dev, priv->rx_buf.alloc_len, priv->rx_buf.alloc,
priv->rx_buf.alloc_len);
priv->rx_buf.alloc_phys);
out:
return err;
}