Commit 1a57efe2 authored by Holger Brunck's avatar Holger Brunck Committed by Jakub Kicinski
Browse files

net: wan: fsl_ucc_hdlc: fix uhdlc_memclean 



Unmapping of uf_regs is done from ucc_fast_free and doesn't need to be
done explicitly. If already unmapped ucc_fast_free will crash.

Fixes: c19b6d24 ("drivers/net: support hdlc function for QE-UCC")
Signed-off-by: default avatarHolger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: default avatarSimon Horman <horms@kernel.org>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent ddca6da1

drivers/net/wan/fsl_ucc_hdlc.c

+0 −5
Original line number Diff line number Diff line
@@ -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;