linux-kernel - [PATCH] video: fbdev: intelfb: intelfbhw.c: Cleaning up variable that is never used

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Date:	Sat,  5 Jul 2014 14:25:06 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Tomi Valkeinen <tomi.valkeinen@...com>
Cc:	Rickard Strandqvist <rickard.strandqvist@...ymobile.com>,
	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	Jingoo Han <jg1.han@...sung.com>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	Rob Clark <robdclark@...il.com>,
	Daniel Vetter <daniel.vetter@...ll.ch>,
	linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] video: fbdev: intelfb: intelfbhw.c:  Cleaning up variable that is never used

From: Rickard Strandqvist <rickard.strandqvist@...ymobile.com>

Variable ar assigned a value that is never used.
I have also removed all the code that thereby serves no purpose.

This was found using a static code analysis program called cppcheck

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 drivers/video/fbdev/intelfb/intelfbhw.c |    9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/video/fbdev/intelfb/intelfbhw.c b/drivers/video/fbdev/intelfb/intelfbhw.c
index fbad61d..dea89ed 100644
--- a/drivers/video/fbdev/intelfb/intelfbhw.c
+++ b/drivers/video/fbdev/intelfb/intelfbhw.c
@@ -937,15 +937,11 @@ static int calc_pll_params(int index, int clock, u32 *retm1, u32 *retm2,
 {
 	u32 m1, m2, n, p1, p2, n1, testm;
 	u32 f_vco, p, p_best = 0, m, f_out = 0;
-	u32 err_max, err_target, err_best = 10000000;
-	u32 n_best = 0, m_best = 0, f_best, f_err;
+	u32 err_best = 10000000;
+	u32 n_best = 0, m_best = 0, f_err;
 	u32 p_min, p_max, p_inc, div_max;
 	struct pll_min_max *pll = &plls[index];
 
-	/* Accept 0.5% difference, but aim for 0.1% */
-	err_max = 5 * clock / 1000;
-	err_target = clock / 1000;
-
 	DBG_MSG("Clock is %d\n", clock);
 
 	div_max = pll->max_vco / clock;
@@ -992,7 +988,6 @@ static int calc_pll_params(int index, int clock, u32 *retm1, u32 *retm2,
 					m_best = testm;
 					n_best = n;
 					p_best = p;
-					f_best = f_out;
 					err_best = f_err;
 				}
 			}
-- 
1.7.10.4

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