[PATCH 03/20] cris: Do not call do_signal() with irqs disabled

From: Richard Weinberger
Date: Fri May 25 2012 - 18:11:31 EST


get_signal_to_deliver() calls try_to_freeze() which might sleep.

Cc: Mikael Starvik <starvik@xxxxxxxx>
Cc: Jesper Nilsson <jesper.nilsson@xxxxxxxx>
Cc: linux-cris-kernel@xxxxxxxx
Signed-off-by: Richard Weinberger <richard@xxxxxx>
---
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

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/