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-rw-r--r--drivers/mmc/core/core.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 4b1d8fb..6625c05 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -299,8 +299,9 @@ void mmc_set_data_timeout(struct mmc_data *data, const struct mmc_card *card)
unsigned int timeout_us, limit_us;
timeout_us = data->timeout_ns / 1000;
- timeout_us += data->timeout_clks * 1000 /
- (mmc_host_clk_rate(card->host) / 1000);
+ if (mmc_host_clk_rate(card->host))
+ timeout_us += data->timeout_clks * 1000 /
+ (mmc_host_clk_rate(card->host) / 1000);
if (data->flags & MMC_DATA_WRITE)
/*
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