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mmc: dw_mmc: remove the unnecessary IS_ERR() checking for ciu/biu clock 

If ciu/biu clock are NULL, clk_disable_unprepare should be just
returned. In clk_disable_unprepare(), already checked whether clk is
error or NULL.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jaehoon Chung 2016-07-15 10:54:08 +09:00 committed by Ulf Hansson
parent 00f400b73b
commit 7037f3beae
1 changed files with 4 additions and 9 deletions
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13
drivers/mmc/host/dw_mmc.c
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@ -3151,12 +3151,10 @@ err_dmaunmap:
host->dma_ops->exit(host);
err_clk_ciu:
if (!IS_ERR(host->ciu_clk))
clk_disable_unprepare(host->ciu_clk);
clk_disable_unprepare(host->ciu_clk);
err_clk_biu:
if (!IS_ERR(host->biu_clk))
clk_disable_unprepare(host->biu_clk);
clk_disable_unprepare(host->biu_clk);
return ret;
}
@ -3182,11 +3180,8 @@ void dw_mci_remove(struct dw_mci *host)
if (host->use_dma && host->dma_ops->exit)
host->dma_ops->exit(host);
if (!IS_ERR(host->ciu_clk))
clk_disable_unprepare(host->ciu_clk);
if (!IS_ERR(host->biu_clk))
clk_disable_unprepare(host->biu_clk);
clk_disable_unprepare(host->ciu_clk);
clk_disable_unprepare(host->biu_clk);
}
EXPORT_SYMBOL(dw_mci_remove);