linux-kernel - [PATCH] arm: fault.c: fix unhandled page fault message

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Date:	Wed, 15 Jul 2015 17:30:50 +0200
From:	Levente Kurusa <lkurusa@...hat.com>
To:	Russell King <linux@....linux.org.uk>
Cc:	ARM PORT <linux-arm-kernel@...ts.infradead.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Levente Kurusa <lkurusa@...hat.com>
Subject: [PATCH] arm: fault.c: fix unhandled page fault message

Even if the signal was handled using signal(2) the message
would be printed. Fix that by checking whether the signal
is handled.

Signed-off-by: Levente Kurusa <lkurusa@...hat.com>
---
 arch/arm/mm/fault.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
index 0d629b8..bbf5d73 100644
--- a/arch/arm/mm/fault.c
+++ b/arch/arm/mm/fault.c
@@ -164,8 +164,9 @@ __do_user_fault(struct task_struct *tsk, unsigned long addr,
 	struct siginfo si;
 
 #ifdef CONFIG_DEBUG_USER
-	if (((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) ||
-	    ((user_debug & UDBG_BUS)  && (sig == SIGBUS))) {
+	if ((((user_debug & UDBG_SEGV) && (sig == SIGSEGV)) ||
+	     ((user_debug & UDBG_BUS)  && (sig == SIGBUS))) &&
+	     unhandled_signal(tsk, sig)) {
 		printk(KERN_DEBUG "%s: unhandled page fault (%d) at 0x%08lx, code 0x%03x\n",
 		       tsk->comm, sig, addr, fsr);
 		show_pte(tsk->mm, addr);
-- 
2.4.3

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