From: Roel Kluin <12o3l@tiscali.nl> Date: Thu, 24 Jul 2008 04:31:17 +0000 (-0700) Subject: aty128fb: test below 0 on unsigned pll->post_divider X-Git-Tag: v2.6.27-rc1~569 X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=commitdiff_plain;h=816664f88707b03fde24fb09759d569ed42406cb;p=linux-2.6-omap-h63xx.git aty128fb: test below 0 on unsigned pll->post_divider pll->post_divider is unsigned, so the test fails Signed-off-by: Roel Kluin <12o3l@tiscali.nl> Cc: Benjamin Herrenschmidt Cc: Antonino Daplas Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 07b6addbb3c..243ea4ab20c 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1339,10 +1339,8 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, if (vclk * 12 < c.ppll_min) vclk = c.ppll_min/12; - pll->post_divider = -1; - /* now, find an acceptable divider */ - for (i = 0; i < sizeof(post_dividers); i++) { + for (i = 0; i < ARRAY_SIZE(post_dividers); i++) { output_freq = post_dividers[i] * vclk; if (output_freq >= c.ppll_min && output_freq <= c.ppll_max) { pll->post_divider = post_dividers[i]; @@ -1350,7 +1348,7 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll, } } - if (pll->post_divider < 0) + if (i == ARRAY_SIZE(post_dividers)) return -EINVAL; /* calculate feedback divider */