Commit a9727983 authored by Helge Deller's avatar Helge Deller

parisc/unaligned: Fix ldw() and stw() unalignment handlers

Fix 3 bugs:

a) emulate_stw() doesn't return the error code value, so faulting
instructions are not reported and aborted.

b) Tell emulate_ldw() to handle fldw_l as floating point instruction

c) Tell emulate_ldw() to handle ldw_m as integer instruction
Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
parent dd2288f4
......@@ -340,7 +340,7 @@ static int emulate_stw(struct pt_regs *regs, int frreg, int flop)
: "r" (val), "r" (regs->ior), "r" (regs->isr)
: "r19", "r20", "r21", "r22", "r1", FIXUP_BRANCH_CLOBBER );
return 0;
return ret;
}
static int emulate_std(struct pt_regs *regs, int frreg, int flop)
{
......@@ -619,10 +619,10 @@ void handle_unaligned(struct pt_regs *regs)
{
case OPCODE_FLDW_L:
flop=1;
ret = emulate_ldw(regs, R2(regs->iir),0);
ret = emulate_ldw(regs, R2(regs->iir), 1);
break;
case OPCODE_LDW_M:
ret = emulate_ldw(regs, R2(regs->iir),1);
ret = emulate_ldw(regs, R2(regs->iir), 0);
break;
case OPCODE_FSTW_L:
......
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