[PATCH] m25p80: wait for flash before returning after erase

[Eric Bénard]

else when we do "erase /dev/m25p0.rootfs; reset", the board
will never reboot as the flash is busy to finish the erase
command.

Signed-off-by: Eric Bénard <eric at eukrea.com>
---
 drivers/nor/m25p80.c |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)

diff --git a/drivers/nor/m25p80.c b/drivers/nor/m25p80.c
index daaf60c..5713ad5 100644
--- a/drivers/nor/m25p80.c
+++ b/drivers/nor/m25p80.c
@@ -257,6 +257,9 @@ static ssize_t m25p80_erase(struct cdev *cdev, size_t count, loff_t offset)
 		}
 	}
 
+	if (wait_till_ready(flash))
+		return -ETIMEDOUT;
+
 	return 0;
 }
 
@@ -684,7 +687,6 @@ static const struct spi_device_id *jedec_probe(struct spi_device *spi)
 	return NULL;
 }
 
-
 static struct file_operations m25p80_ops = {
 	.read   = m25p80_read,
 	.write  = m25p80_write,
-- 
1.7.7.6