diff options
| author | Helge Deller <deller@gmx.de> | 2022-02-18 23:40:14 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-02 11:33:53 +0100 |
| commit | 2f3bd25d1f021494ec3fcc7eebc400e5d89ab43a (patch) | |
| tree | 8272c7760e73a1dd3f17387f4c35753758268e1b | |
| parent | 6fd1358b6dec0c609ca97d2b4a545e1bd19786bb (diff) | |
| download | linux-rt-2f3bd25d1f021494ec3fcc7eebc400e5d89ab43a.tar.gz | |
parisc/unaligned: Fix ldw() and stw() unalignment handlers
commit a97279836867b1cb50a3d4f0b1bf60e0abe6d46c upstream.
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: Helge Deller <deller@gmx.de>
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | arch/parisc/kernel/unaligned.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/parisc/kernel/unaligned.c b/arch/parisc/kernel/unaligned.c index 681585e30d4e..b3c19ab2485c 100644 --- a/arch/parisc/kernel/unaligned.c +++ b/arch/parisc/kernel/unaligned.c @@ -354,7 +354,7 @@ 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) { @@ -634,10 +634,10 @@ 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: |