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| author | Jakub Bogusz <qboosh@pld-linux.org> | 2005-06-21 17:15:29 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-06-21 18:46:25 -0700 |
| commit | a70d439345875d476ede258094356e2acd09b1a1 (patch) | |
| tree | 0c5d63edbc020104cac05e444c4527d8bc78e857 /arch | |
| parent | ba8c6d534a0144375f910e764ec965d5e8059f7a (diff) | |
| download | op-kernel-dev-a70d439345875d476ede258094356e2acd09b1a1.zip op-kernel-dev-a70d439345875d476ede258094356e2acd09b1a1.tar.gz | |
[PATCH] ppc32: don't recursively crash in die() on CHRP/PReP machines
This patch avoids recursive crash (leading to kernel stack overflow) in
die() on CHRP/PReP machines when CONFIG_PMAC_BACKLIGHT=y. set_backlight_*
functions are placed in pmac section, which is discarded when _machine !=
_MACH_Pmac.
Signed-off-by: Jakub Bogusz <qboosh@pld-linux.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/ppc/kernel/traps.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/ppc/kernel/traps.c b/arch/ppc/kernel/traps.c index c65731e..2ca8ecf 100644 --- a/arch/ppc/kernel/traps.c +++ b/arch/ppc/kernel/traps.c @@ -81,8 +81,10 @@ void die(const char * str, struct pt_regs * fp, long err) console_verbose(); spin_lock_irq(&die_lock); #ifdef CONFIG_PMAC_BACKLIGHT - set_backlight_enable(1); - set_backlight_level(BACKLIGHT_MAX); + if (_machine == _MACH_Pmac) { + set_backlight_enable(1); + set_backlight_level(BACKLIGHT_MAX); + } #endif printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter); #ifdef CONFIG_PREEMPT |
