linux-kernel - [PATCH 04/20] signal/sparc32: Remove unreachable do_exit in do_sparc

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Message-Id: <20211020174406.17889-4-ebiederm@xmission.com>
Date:   Wed, 20 Oct 2021 12:43:50 -0500
From:   "Eric W. Biederman" <ebiederm@...ssion.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-arch@...r.kernel.org,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Oleg Nesterov <oleg@...hat.com>,
        Al Viro <viro@...IV.linux.org.uk>,
        Kees Cook <keescook@...omium.org>,
        "Eric W. Biederman" <ebiederm@...ssion.com>,
        David Miller <davem@...emloft.net>, sparclinux@...r.kernel.org
Subject: [PATCH 04/20] signal/sparc32: Remove unreachable do_exit in do_sparc_fault

The call to do_exit in do_sparc_fault immediately follows a call to
unhandled_fault.  The function unhandled_fault never returns.  This
means the call to do_exit can never be reached.

Cc: David Miller <davem@...emloft.net>
Cc: sparclinux@...r.kernel.org
Fixes: 2.3.41
Signed-off-by: "Eric W. Biederman" <ebiederm@...ssion.com>
---
 arch/sparc/mm/fault_32.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/arch/sparc/mm/fault_32.c b/arch/sparc/mm/fault_32.c
index fa858626b85b..90dc4ae315c8 100644
--- a/arch/sparc/mm/fault_32.c
+++ b/arch/sparc/mm/fault_32.c
@@ -248,7 +248,6 @@ asmlinkage void do_sparc_fault(struct pt_regs *regs, int text_fault, int write,
 	}
 
 	unhandled_fault(address, tsk, regs);
-	do_exit(SIGKILL);
 
 /*
  * We ran out of memory, or some other thing happened to us that made
-- 
2.20.1