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Date: Thu, 14 Apr 2022 15:08:58 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Jiasheng Jiang <jiasheng@...as.ac.cn>, Ulf Hansson <ulf.hansson@...aro.org>, Sasha Levin <sashal@...nel.org> Subject: [PATCH 5.4 153/475] mmc: davinci_mmc: Handle error for clk_enable From: Jiasheng Jiang <jiasheng@...as.ac.cn> [ Upstream commit 09e7af76db02c74f2a339b3cb2d95460fa2ddbe4 ] As the potential failure of the clk_enable(), it should be better to check it and return error if fails. Fixes: bbce5802afc5 ("davinci: mmc: updates to suspend/resume implementation") Signed-off-by: Jiasheng Jiang <jiasheng@...as.ac.cn> Link: https://lore.kernel.org/r/20220308071415.1093393-1-jiasheng@iscas.ac.cn Signed-off-by: Ulf Hansson <ulf.hansson@...aro.org> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/mmc/host/davinci_mmc.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mmc/host/davinci_mmc.c b/drivers/mmc/host/davinci_mmc.c index ebfaeb33bc8c..ade7c022a33c 100644 --- a/drivers/mmc/host/davinci_mmc.c +++ b/drivers/mmc/host/davinci_mmc.c @@ -1376,8 +1376,12 @@ static int davinci_mmcsd_suspend(struct device *dev) static int davinci_mmcsd_resume(struct device *dev) { struct mmc_davinci_host *host = dev_get_drvdata(dev); + int ret; + + ret = clk_enable(host->clk); + if (ret) + return ret; - clk_enable(host->clk); mmc_davinci_reset_ctrl(host, 0); return 0; -- 2.34.1
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