clk: mmp: frac: Remove set but not used variable 'prev_rate'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/clk/mmp/clk-frac.c: In function clk_factor_set_rate:
drivers/clk/mmp/clk-frac.c:81:16: warning: variable prev_rate set but not used [-Wunused-but-set-variable]

It's never used and can be removed.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>

diff --git a/drivers/clk/mmp/clk-frac.c b/drivers/clk/mmp/clk-frac.c
index cb43d54735b054cf971875e02d1ee30caae12652..90bf181f191afaa386b31ae63bf3cfeade8db741 100644 (file)
--- a/drivers/clk/mmp/clk-frac.c
+++ b/drivers/clk/mmp/clk-frac.c
@@ -78,11 +78,10 @@ static int clk_factor_set_rate(struct clk_hw *hw, unsigned long drate,
        struct mmp_clk_factor_masks *masks = factor->masks;
        int i;
        unsigned long val;
-       unsigned long prev_rate, rate = 0;
+       unsigned long rate = 0;
        unsigned long flags = 0;
 
        for (i = 0; i < factor->ftbl_cnt; i++) {
-               prev_rate = rate;
                rate = (((prate / 10000) * factor->ftbl[i].den) /
                        (factor->ftbl[i].num * factor->masks->factor)) * 10000;
                if (rate > drate)