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net: wan: fsl_ucc_hdlc: fix ucc_hdlc_remove

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If the driver is used in a non tdm mode priv->utdm is a NULL pointer.
Therefore we need to check this pointer first before checking si_regs.

Fixes: c19b6d246a ("drivers/net: support hdlc function for QE-UCC")
Signed-off-by: Holger Brunck <holger.brunck@hitachienergy.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Holger Brunck 2026-04-29 13:42:08 +02:00 committed by Jakub Kicinski
parent 1a57efe250
commit 851bba8068
1 changed files with 2 additions and 2 deletions
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4
drivers/net/wan/fsl_ucc_hdlc.c
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@ -1250,12 +1250,12 @@ static void ucc_hdlc_remove(struct platform_device *pdev)
uhdlc_memclean(priv);
if (priv->utdm->si_regs) {
if (priv->utdm && priv->utdm->si_regs) {
iounmap(priv->utdm->si_regs);
priv->utdm->si_regs = NULL;
}
if (priv->utdm->siram) {
if (priv->utdm && priv->utdm->siram) {
iounmap(priv->utdm->siram);
priv->utdm->siram = NULL;
}