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[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>
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@ -81,8 +81,10 @@ void die(const char * str, struct pt_regs * fp, long err)
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console_verbose();
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spin_lock_irq(&die_lock);
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#ifdef CONFIG_PMAC_BACKLIGHT
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set_backlight_enable(1);
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set_backlight_level(BACKLIGHT_MAX);
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if (_machine == _MACH_Pmac) {
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set_backlight_enable(1);
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set_backlight_level(BACKLIGHT_MAX);
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}
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#endif
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printk("Oops: %s, sig: %ld [#%d]\n", str, err, ++die_counter);
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#ifdef CONFIG_PREEMPT
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