| From | Matt Fleming <> | Subject | [PATCH 24/41] score: Don't mask signals if we fail to setup signal stack | Date | Thu, 11 Aug 2011 14:56:58 +0100 |
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From: Matt Fleming <matt.fleming@intel.com>
If setup_rt_frame() returns -EFAULT then we must not block any signals in the current process.
Cc: Chen Liqin <liqin.chen@sunplusct.com> Cc: Lennox Wu <lennox.wu@gmail.com> Signed-off-by: Matt Fleming <matt.fleming@intel.com> --- arch/score/kernel/signal.c | 14 ++++++++------ 1 files changed, 8 insertions(+), 6 deletions(-)
diff --git a/arch/score/kernel/signal.c b/arch/score/kernel/signal.c index aa57440..bf9e33e 100644 --- a/arch/score/kernel/signal.c +++ b/arch/score/kernel/signal.c @@ -272,12 +272,14 @@ static int handle_signal(unsigned long sig, siginfo_t *info, */ ret = setup_rt_frame(ka, regs, sig, oldset, info); - spin_lock_irq(¤t->sighand->siglock); - sigorsets(¤t->blocked, ¤t->blocked, &ka->sa.sa_mask); - if (!(ka->sa.sa_flags & SA_NODEFER)) - sigaddset(¤t->blocked, sig); - recalc_sigpending(); - spin_unlock_irq(¤t->sighand->siglock); + if (ret == 0) { + spin_lock_irq(¤t->sighand->siglock); + sigorsets(¤t->blocked, ¤t->blocked, &ka->sa.sa_mask); + if (!(ka->sa.sa_flags & SA_NODEFER)) + sigaddset(¤t->blocked, sig); + recalc_sigpending(); + spin_unlock_irq(¤t->sighand->siglock); + } return ret; } -- 1.7.4.4
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