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 <baijiaju1...@163.com>
---
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
_______________________________________________
devel mailing list
de...@linuxdriverproject.org
http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
