Blackfin arch: ensure we work around ANOMALY_05000261 for null pointers

 We currently do not. Also make it easier to handle cplb violations - in traps.c

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 4 insertions, 6 deletions

diff --git a/arch/blackfin/kernel/traps.c b/arch/blackfin/kernel/traps.c
index cfa05436c972..aaddb724a5fb 100644
--- a/arch/blackfin/kernel/traps.c
+++ b/arch/blackfin/kernel/traps.c
@@ -311,11 +311,10 @@ asmlinkage void trap_c(struct pt_regs *fp)
                 printk(KERN_NOTICE EXC_0x22);
                 CHK_DEBUGGER_TRAP();
                 break;
-        /* 0x23 - Data CPLB Protection Violation,
-                 normal case is handled in _cplb_hdr */
+        /* 0x23 - Data CPLB protection violation, handled here */
         case VEC_CPLB_VL:
                 info.si_code = ILL_CPLB_VI;
-                sig = SIGILL;
+                sig = SIGBUS;
                 printk(KERN_NOTICE EXC_0x23);
                 CHK_DEBUGGER_TRAP();
                 break;
@@ -382,11 +381,10 @@ asmlinkage void trap_c(struct pt_regs *fp)
                 printk(KERN_NOTICE EXC_0x2A);
                 CHK_DEBUGGER_TRAP();
                 break;
-        /* 0x2B - Instruction CPLB protection Violation,
-                handled in _cplb_hdr */
+        /* 0x2B - Instruction CPLB protection violation, handled here */
         case VEC_CPLB_I_VL:
                 info.si_code = ILL_CPLB_VI;
-                sig = SIGILL;
+                sig = SIGBUS;
                 printk(KERN_NOTICE EXC_0x2B);
                 CHK_DEBUGGER_TRAP();
                 break;