diff options
| -rw-r--r-- | arch/cris/arch-v32/kernel/entry.S | 5 | ||||
| -rw-r--r-- | arch/cris/arch-v32/kernel/signal.c | 5 |
2 files changed, 8 insertions, 2 deletions
diff --git a/arch/cris/arch-v32/kernel/entry.S b/arch/cris/arch-v32/kernel/entry.S index d4c088b4044c..1ea29b7f263c 100644 --- a/arch/cris/arch-v32/kernel/entry.S +++ b/arch/cris/arch-v32/kernel/entry.S @@ -147,7 +147,7 @@ system_call: ;; Stack-frame similar to the irq heads, which is reversed in ;; ret_from_sys_call. - sub.d 92, $sp ; Skip EXS and EDA. + sub.d 92, $sp ; Skip EDA. movem $r13, [$sp] move.d $sp, $r8 addq 14*4, $r8 @@ -158,8 +158,9 @@ system_call: move $ccs, $r4 move $srp, $r5 move $erp, $r6 + move.d $r9, $r7 ; Store syscall number in EXS subq 4, $sp - movem $r6, [$r8] + movem $r7, [$r8] ei ; Enable interrupts while processing syscalls. move.d $r10, [$sp] diff --git a/arch/cris/arch-v32/kernel/signal.c b/arch/cris/arch-v32/kernel/signal.c index 870e3e069318..d8d13beafc02 100644 --- a/arch/cris/arch-v32/kernel/signal.c +++ b/arch/cris/arch-v32/kernel/signal.c @@ -72,6 +72,9 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) /* Make that the user-mode flag is set. */ regs->ccs |= (1 << (U_CCS_BITNR + CCS_SHIFT)); + /* Don't perform syscall restarting */ + regs->exs = -1; + /* Restore the old USP. */ err |= __get_user(old_usp, &sc->usp); wrusp(old_usp); @@ -427,6 +430,8 @@ do_signal(int canrestart, struct pt_regs *regs) { struct ksignal ksig; + canrestart = canrestart && ((int)regs->exs >= 0); + /* * The common case should go fast, which is why this point is * reached from kernel-mode. If that's the case, just return |