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clk: imx: pllv2: avoid using uninitialized values

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Forward the errors returned by __clk_pllv2_set_rate() in the recalc rate
function, to avoid using uninitialized values for the rate calculation.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Lucas Stach 2018-01-17 16:02:56 +01:00 committed by Stephen Boyd
parent cc4d07a411
commit 93abad369a
1 changed files with 5 additions and 1 deletions
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6
drivers/clk/imx/clk-pllv2.c
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@ -182,8 +182,12 @@ static long clk_pllv2_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
u32 dp_op, dp_mfd, dp_mfn;
int ret;
ret = __clk_pllv2_set_rate(rate, *prate, &dp_op, &dp_mfd, &dp_mfn);
if (ret)
return ret;
__clk_pllv2_set_rate(rate, *prate, &dp_op, &dp_mfd, &dp_mfn);
return __clk_pllv2_recalc_rate(*prate, MXC_PLL_DP_CTL_DPDCK0_2_EN,
dp_op, dp_mfd, dp_mfn);
}