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sh: Fix unaligned memory access for branches without delay slots

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This patch just clears the return code for those cases where an
unaligned memory access occurs on branch instructions without a
delay slot.

Signed-off-by: Phil Edworthy <phil.edworthy@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Phil Edworthy
2011-08-22 15:56:08 +00:00
committed by Paul Mundt
parent 2d0b579a98
commit 0710b91c51
1 changed files with 2 additions and 0 deletions
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2
arch/sh/kernel/traps_32.c
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@@ -466,6 +466,7 @@ int handle_unaligned_access(insn_size_t instruction, struct pt_regs *regs,
case 0x0500: /* mov.w @(disp,Rm),R0 */ case 0x0500: /* mov.w @(disp,Rm),R0 */
goto simple; goto simple;
case 0x0B00: /* bf lab - no delayslot*/ case 0x0B00: /* bf lab - no delayslot*/
ret = 0;
break; break;
case 0x0F00: /* bf/s lab */ case 0x0F00: /* bf/s lab */
ret = handle_delayslot(regs, instruction, ma); ret = handle_delayslot(regs, instruction, ma);
@@ -479,6 +480,7 @@ int handle_unaligned_access(insn_size_t instruction, struct pt_regs *regs,
} }
break; break;
case 0x0900: /* bt lab - no delayslot */ case 0x0900: /* bt lab - no delayslot */
ret = 0;
break; break;
case 0x0D00: /* bt/s lab */ case 0x0D00: /* bt/s lab */
ret = handle_delayslot(regs, instruction, ma); ret = handle_delayslot(regs, instruction, ma);