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serial: mpc52xx_uart: fix null pointer dereference

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Commit 6acc683351
introduced NULL pointer dereference and kernel crash
on ppc32 machines while booting. Fix this bug now.

Reported-by: Leonardo Chiquitto <[email protected]>
Tested-by: Leonardo Chiquitto <[email protected]>
Signed-off-by: Anatolij Gustschin <[email protected]>
Acked-by: Grant Likely <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
This commit is contained in:
Anatolij Gustschin 2010-05-05 00:18:59 +02:00 • committed by Greg Kroah-Hartman
commit e6114fa1d1
1 changed files with 1 additions and 1 deletions
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2
drivers/serial/mpc52xx_uart.c
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@ -1467,7 +1467,7 @@ mpc52xx_uart_init(void)
/*
* Map the PSC FIFO Controller and init if on MPC512x.
*/
if (psc_ops->fifoc_init) {
if (psc_ops && psc_ops->fifoc_init) {
ret = psc_ops->fifoc_init();
if (ret)
return ret;