[PATCH] rts5208: Fix a sleep-in-atomic bug in sd_power_off_card3v3

[Jia-Ju Bai]

The driver may sleep under a spin lock, and the function call path is:
rtsx_exclusive_enter_ss (acquire the lock by spin_lock)
  rtsx_enter_ss
rtsx_power_off_card
  sd_power_off_card3v3
wait_timeout
  schedule_timeout --> may sleep

To fix it, "wait_timeout" is replaced with mdelay in sd_power_off_card3v3.

Signed-off-by: Jia-Ju Bai 
---
 drivers/staging/rts5208/sd.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c
index bdd35b6..aa14454 100644
--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -5231,7 +5231,7 @@ int sd_power_off_card3v3(struct rtsx_chip *chip)
return STATUS_FAIL;
}
 
-   wait_timeout(50);
+   mdelay(50);
}
 
if (chip->asic_code) {
-- 
1.7.9.5

[PATCH] rts5208: Fix a sleep-in-atomic bug in sd_power_off_card3v3

[Jia-Ju Bai]

The driver may sleep under a spin lock, and the function call path is:
rtsx_exclusive_enter_ss (acquire the lock by spin_lock)
  rtsx_enter_ss
rtsx_power_off_card
  sd_power_off_card3v3
wait_timeout
  schedule_timeout --> may sleep

To fix it, "wait_timeout" is replaced with mdelay in sd_power_off_card3v3.

Signed-off-by: Jia-Ju Bai 
---
 drivers/staging/rts5208/sd.c |2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/rts5208/sd.c b/drivers/staging/rts5208/sd.c
index bdd35b6..aa14454 100644
--- a/drivers/staging/rts5208/sd.c
+++ b/drivers/staging/rts5208/sd.c
@@ -5231,7 +5231,7 @@ int sd_power_off_card3v3(struct rtsx_chip *chip)
return STATUS_FAIL;
}
 
-   wait_timeout(50);
+   mdelay(50);
}
 
if (chip->asic_code) {
-- 
1.7.9.5