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If already unmapped ucc_fast_free will crash. Signed-off-by: Holger Brunck --- drivers/net/wan/fsl_ucc_hdlc.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/net/wan/fsl_ucc_hdlc.c b/drivers/net/wan/fsl_ucc_hdlc.c index 3bd57527b1be..8155e92af14e 100644 --- a/drivers/net/wan/fsl_ucc_hdlc.c +++ b/drivers/net/wan/fsl_ucc_hdlc.c @@ -773,11 +773,6 @@ static void uhdlc_memclean(struct ucc_hdlc_private *priv) kfree(priv->tx_skbuff); priv->tx_skbuff = NULL; - if (priv->uf_regs) { - iounmap(priv->uf_regs); - priv->uf_regs = NULL; - } - if (priv->uccf) { ucc_fast_free(priv->uccf); priv->uccf = NULL; -- 2.52.0.120.gb31ab939fe