Blackfin arch: cleanup the icplb/dcplb multiple hit checks
so that we always send the same signal and we handle the NULL ptr condition properly Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
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@ -364,13 +364,13 @@ asmlinkage void trap_c(struct pt_regs *fp)
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/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
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case VEC_CPLB_MHIT:
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info.si_code = ILL_CPLB_MULHIT;
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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sig = SIGSEGV;
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printk(KERN_NOTICE "NULL pointer access (probably)\n");
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#else
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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if (saved_dcplb_fault_addr < (void *)FIXED_CODE_START)
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printk(KERN_NOTICE "NULL pointer access\n");
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else
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#endif
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printk(KERN_NOTICE EXC_0x27(KERN_NOTICE));
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CHK_DEBUGGER_TRAP();
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break;
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/* 0x28 - Emulation Watchpoint, handled here */
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@ -419,13 +419,13 @@ asmlinkage void trap_c(struct pt_regs *fp)
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/* 0x2D - Instruction CPLB Multiple Hits, handled here */
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case VEC_CPLB_I_MHIT:
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info.si_code = ILL_CPLB_MULHIT;
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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sig = SIGSEGV;
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printk(KERN_NOTICE "Jump to address 0 - 0x0fff\n");
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#else
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sig = SIGILL;
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printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
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#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
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if (saved_icplb_fault_addr < (void *)FIXED_CODE_START)
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printk(KERN_NOTICE "Jump to NULL address\n");
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else
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#endif
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printk(KERN_NOTICE EXC_0x2D(KERN_NOTICE));
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CHK_DEBUGGER_TRAP();
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break;
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/* 0x2E - Illegal use of Supervisor Resource, handled here */
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