Messages in this thread Patch in this message |  | | | From | Richard Weinberger <> | | Subject | [PATCH 10/20] sh: Do not call do_signal() with irqs disabled | | Date | Sat, 26 May 2012 00:04:26 +0200 |
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get_signal_to_deliver() calls try_to_freeze() which might sleep.
Cc: Paul Mundt <lethal@linux-sh.org> Cc: linux-sh@vger.kernel.org Signed-off-by: Richard Weinberger <richard@nod.at> --- arch/sh/kernel/signal_32.c | 3 +++ arch/sh/kernel/signal_64.c | 3 +++ 2 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c index cb4172c..4f1db5e 100644 --- a/arch/sh/kernel/signal_32.c +++ b/arch/sh/kernel/signal_32.c @@ -25,6 +25,7 @@ #include <linux/freezer.h> #include <linux/io.h> #include <linux/tracehook.h> +#include <linux/irqflags.h> #include <asm/ucontext.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -619,6 +620,8 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0) asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned int save_r0, unsigned long thread_info_flags) { + local_irq_enable(); + /* deal with pending signal delivery */ if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs, save_r0); diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c index b589a35..f92fdb7 100644 --- a/arch/sh/kernel/signal_64.c +++ b/arch/sh/kernel/signal_64.c @@ -23,6 +23,7 @@ #include <linux/unistd.h> #include <linux/stddef.h> #include <linux/tracehook.h> +#include <linux/irqflags.h> #include <asm/ucontext.h> #include <asm/uaccess.h> #include <asm/pgtable.h> @@ -679,6 +680,8 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, asmlinkage void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) { + local_irq_enable(); + if (thread_info_flags & _TIF_SIGPENDING) do_signal(regs); -- 1.7.7.3
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