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mmc: Fix mmc_delay() function 

Several fixes for mmc_delay():

 * Repair if-clause that was supposed to detect sub-hz delays.
 * Change yield() to cond_resched() as yield() no longer has the
   semantics we desire.
 * mmc_delay() is used to guarantee protocol delays, so we cannot
   return early (i.e. use _interruptable).

Based on patch by Amol Lad.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
hifive-unleashed-5.1
Pierre Ossman 2006-10-22 22:13:10 +02:00
parent e45a1bd20f
commit 73778120c4
1 changed files with 3 additions and 3 deletions
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6
drivers/mmc/mmc.c
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@ -454,11 +454,11 @@ static void mmc_deselect_cards(struct mmc_host *host)
static inline void mmc_delay(unsigned int ms)
{
if (ms < HZ / 1000) {
yield();
if (ms < 1000 / HZ) {
cond_resched();
mdelay(ms);
} else {
msleep_interruptible (ms);
msleep(ms);
}
}