[PATCH] mtd: nand: make more readable panic_nand_wait_ready() andnand_wait_ready()

From: Eunbong Song
Date: Tue Jan 07 2014 - 18:20:10 EST



panic_nand_wait_ready() and nand_wait_ready() calls dev_ready() without checking if it exists.
This patch add check routine dev_ready() before run dev_ready()
and this makes the code more readable

Signed-off-by: Eunbong Song <eunb.song@xxxxxxxxxxx>
---
drivers/mtd/nand/nand_base.c | 12 ++++++++----
1 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index bd39f7b..110db78 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -473,8 +473,10 @@ static void panic_nand_wait_ready(struct mtd_info *mtd, unsigned long timeo)

/* Wait for the device to get ready */
for (i = 0; i < timeo; i++) {
- if (chip->dev_ready(mtd))
- break;
+ if(chip->dev_ready){
+ if (chip->dev_ready(mtd))
+ break;
+ }
touch_softlockup_watchdog();
mdelay(1);
}
@@ -493,8 +495,10 @@ void nand_wait_ready(struct mtd_info *mtd)
led_trigger_event(nand_led_trigger, LED_FULL);
/* Wait until command is processed or timeout occurs */
do {
- if (chip->dev_ready(mtd))
- break;
+ if(chip->dev_ready){
+ if (chip->dev_ready(mtd))
+ break;
+ }
touch_softlockup_watchdog();
} while (time_before(jiffies, timeo));
led_trigger_event(nand_led_trigger, LED_OFF);
--
1.7.0.4
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