3.16.35-rc1 review patch. If anyone has any objections, please let me know.
------------------ From: Russell King <[email protected]> commit fafcfda9e78cae8796d1799f14e6457790797555 upstream. The data timeout gives the minimum amount of time that should be waited before timing out if no data is received from the card. Simply dividing the nanosecond part by 1000 does not give this required guarantee, since such a division rounds down. Use DIV_ROUND_UP() to give the desired timeout. Signed-off-by: Russell King <[email protected]> Signed-off-by: Adrian Hunter <[email protected]> Tested-by: Gregory CLEMENT <[email protected]> Signed-off-by: Ulf Hansson <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> --- drivers/mmc/host/sdhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -660,7 +660,7 @@ static u8 sdhci_calc_timeout(struct sdhc if (!data) target_timeout = cmd->busy_timeout * 1000; else { - target_timeout = data->timeout_ns / 1000; + target_timeout = DIV_ROUND_UP(data->timeout_ns, 1000); if (host->clock) target_timeout += data->timeout_clks / host->clock; }
