diff options
Diffstat (limited to 'arch/mips/kernel/traps.c')
| -rw-r--r-- | arch/mips/kernel/traps.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 3d033e1cd4f0..d96f8218a91e 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1435,6 +1435,9 @@ void __init set_handler (unsigned long offset, void *addr, unsigned long size) flush_icache_range(ebase + offset, ebase + offset + size); } +static char panic_null_cerr[] __initdata = + "Trying to set NULL cache error exception handler"; + /* Install uncached CPU exception handler */ void __init set_uncached_handler (unsigned long offset, void *addr, unsigned long size) { @@ -1445,6 +1448,9 @@ void __init set_uncached_handler (unsigned long offset, void *addr, unsigned lon unsigned long uncached_ebase = TO_UNCAC(ebase); #endif + if (!addr) + panic(panic_null_cerr); + memcpy((void *)(uncached_ebase + offset), addr, size); } |