[PATCH 4/5] memstick: ms_block: keep the power off during a full msb_reset()

[Ho Jie Feng]

Keep the power off for long enough so that the card properly
power cycles.

Fixes: 0ab30494bc4f ("memstick: add support for legacy memorysticks")
Signed-off-by: Ho Jie Feng <hjf3108@xxxxxxxxx>
---
 drivers/memstick/core/ms_block.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/memstick/core/ms_block.c b/drivers/memstick/core/ms_block.c
index e373eaf92530f..66672235a4584 100644
--- a/drivers/memstick/core/ms_block.c
+++ b/drivers/memstick/core/ms_block.c
@@ -740,6 +740,9 @@ static int msb_reset(struct msb_data *msb, bool full)
 
 		msb_invalidate_reg_window(msb);
 
+		/* Allow enough time for the card to fully power off */
+		msleep(20);
+
 		error = host->set_param(host,
 					MEMSTICK_POWER, MEMSTICK_POWER_ON);
 		if (error)
-- 
2.56.0