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Message-id: <1442842450-29769-35-git-send-email-a.hajda@samsung.com> Date: Mon, 21 Sep 2015 15:34:06 +0200 From: Andrzej Hajda <a.hajda@...sung.com> To: linux-kernel@...r.kernel.org Cc: Andrzej Hajda <a.hajda@...sung.com>, Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>, Marek Szyprowski <m.szyprowski@...sung.com>, Eric Paris <eparis@...hat.com>, linux-sh@...r.kernel.org Subject: [PATCH 34/38] perf: remove invalid check Unsigned values cannot be lesser than zero. The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1]. [1]: http://permalink.gmane.org/gmane.linux.kernel/2038576 Signed-off-by: Andrzej Hajda <a.hajda@...sung.com> --- arch/sh/kernel/ptrace_32.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index c1a6b89..6125ce9 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -419,8 +419,7 @@ long arch_ptrace(struct task_struct *child, long request, case PTRACE_POKEUSR: /* write the word at location addr in the USER area */ ret = -EIO; - if ((addr & 3) || addr < 0 || - addr > sizeof(struct user) - 3) + if ((addr & 3) || addr > sizeof(struct user) - 3) break; if (addr < sizeof(struct pt_regs)) -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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