[PATCH 4/5] mtd: st_spi_fsm: Allow loop to run at least once before giving up CPU

Lee Jones lee.jones at linaro.org
Thu Mar 20 07:11:46 EDT 2014


Reported-by: Brian Norris <computersforpeace at gmail.com>
Signed-off-by: Lee Jones <lee.jones at linaro.org>
---
 drivers/mtd/devices/st_spi_fsm.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/mtd/devices/st_spi_fsm.c b/drivers/mtd/devices/st_spi_fsm.c
index 9de753d..921b44a 100644
--- a/drivers/mtd/devices/st_spi_fsm.c
+++ b/drivers/mtd/devices/st_spi_fsm.c
@@ -860,8 +860,6 @@ static uint8_t stfsm_wait_busy(struct stfsm *fsm)
 	 */
 	deadline = jiffies + FLASH_MAX_BUSY_WAIT;
 	while (!timeout) {
-		cond_resched();
-
 		if (time_after_eq(jiffies, deadline))
 			timeout = 1;
 
@@ -880,6 +878,8 @@ static uint8_t stfsm_wait_busy(struct stfsm *fsm)
 		if (!timeout)
 			/* Restart */
 			writel(seq->seq_cfg, fsm->base + SPI_FAST_SEQ_CFG);
+
+		cond_resched();
 	}
 
 	dev_err(fsm->dev, "timeout on wait_busy\n");
-- 
1.8.3.2




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