linux-kernel - [PATCH 03/20] cris: Do not call do

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Date:	Sat, 26 May 2012 00:04:19 +0200
From:	Richard Weinberger <richard@....at>
To:	linux-kernel@...r.kernel.org
Cc:	linux-arch@...r.kernel.org, Richard Weinberger <richard@....at>,
	Mikael Starvik <starvik@...s.com>,
	Jesper Nilsson <jesper.nilsson@...s.com>,
	linux-cris-kernel@...s.com
Subject: [PATCH 03/20] cris: Do not call do_signal() with irqs disabled

get_signal_to_deliver() calls try_to_freeze() which might sleep.

Cc: Mikael Starvik <starvik@...s.com>
Cc: Jesper Nilsson <jesper.nilsson@...s.com>
Cc: linux-cris-kernel@...s.com
Signed-off-by: Richard Weinberger <richard@....at>
---
 arch/cris/kernel/ptrace.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/cris/kernel/ptrace.c b/arch/cris/kernel/ptrace.c
index d114ad3..da1b647 100644
--- a/arch/cris/kernel/ptrace.c
+++ b/arch/cris/kernel/ptrace.c
@@ -17,6 +17,7 @@
 #include <linux/ptrace.h>
 #include <linux/user.h>
 #include <linux/tracehook.h>
+#include <linux/irqflags.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -33,6 +34,8 @@ extern int do_signal(int canrestart, struct pt_regs *regs);
 void do_notify_resume(int canrestart, struct pt_regs *regs,
 		      __u32 thread_info_flags)
 {
+	local_irq_enable();
+
 	/* deal with pending signal delivery */
 	if (thread_info_flags & _TIF_SIGPENDING)
 		do_signal(canrestart,regs);
-- 
1.7.7.3

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