From: Adrian Hunter Date: Tue, 23 Sep 2014 20:00:26 +0000 (+0300) Subject: mmc: Fix incorrect warning when setting 0 Hz via debugfs X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6a98f1e83a2874a189754ded5254ae687828739e;p=linux-beck.git mmc: Fix incorrect warning when setting 0 Hz via debugfs It is possible to turn off the card clock by setting the frequency to zero via debugfs e.g. echo 0 > /sys/kernel/debug/mmc0/clock However that produces an incorrect warning that is designed to warn if the frequency is below the minimum operating frequency. So correct the warning. Signed-off-by: Adrian Hunter Signed-off-by: Ulf Hansson --- diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index cbb23215ad87..f26a5f1d926d 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -995,7 +995,7 @@ void mmc_set_chip_select(struct mmc_host *host, int mode) */ static void __mmc_set_clock(struct mmc_host *host, unsigned int hz) { - WARN_ON(hz < host->f_min); + WARN_ON(hz && hz < host->f_min); if (hz > host->f_max) hz = host->f_max;