serial: mpc52xx_uart: fix null pointer dereference
Commit 6acc683351
introduced NULL pointer dereference and kernel crash
on ppc32 machines while booting. Fix this bug now.
Reported-by: Leonardo Chiquitto <leonardo.lists@gmail.com>
Tested-by: Leonardo Chiquitto <leonardo.lists@gmail.com>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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@ -1467,7 +1467,7 @@ mpc52xx_uart_init(void)
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/*
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* Map the PSC FIFO Controller and init if on MPC512x.
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*/
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if (psc_ops->fifoc_init) {
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if (psc_ops && psc_ops->fifoc_init) {
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ret = psc_ops->fifoc_init();
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if (ret)
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return ret;
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