linux-kernel - [PATCH] arch: x86: math-emu: poly_tan.c: Cleaning up uninitialized variables

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Message-Id: <1401577618-4286-1-git-send-email-rickard_strandqvist@spectrumdigital.se>
Date:	Sun,  1 Jun 2014 01:06:57 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Bill Metzenthen <billm@...bpc.org.au>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, x86@...nel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] arch: x86: math-emu: poly_tan.c:  Cleaning up uninitialized variables

There is a risk that the variable will be used without being initialized.

This was largely found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 arch/x86/math-emu/poly_tan.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/math-emu/poly_tan.c b/arch/x86/math-emu/poly_tan.c
index 1875763..fc481d4 100644
--- a/arch/x86/math-emu/poly_tan.c
+++ b/arch/x86/math-emu/poly_tan.c
@@ -93,6 +93,7 @@ void poly_tan(FPU_REG *st0_ptr)
 		exponent = -1 + norm_Xsig(&argSignif);
 	} else {
 		invert = 0;
+		accum.lsw = 0;
 		argSignif.lsw = 0;
 		XSIG_LL(accum) = XSIG_LL(argSignif) = significand(st0_ptr);
 
-- 
1.7.10.4

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