diff options
Diffstat (limited to 'drivers/staging/sep/sep_driver.c')
| -rw-r--r-- | drivers/staging/sep/sep_driver.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c index 5a54f984e28e..83475eb77ad8 100644 --- a/drivers/staging/sep/sep_driver.c +++ b/drivers/staging/sep/sep_driver.c @@ -53,6 +53,7 @@ #include <asm/cacheflush.h> #include <linux/sched.h> #include <linux/delay.h> +#include <linux/jiffies.h> #include <linux/rar_register.h> #include "../memrar/memrar.h" @@ -3244,6 +3245,9 @@ static int sep_reconfig_shared_area(struct sep_device *sep) { int ret_val; + /* use to limit waiting for SEP */ + unsigned long end_time; + dev_dbg(&sep->pdev->dev, "reconfig shared area start\n"); /* Send the new SHARED MESSAGE AREA to the SEP */ @@ -3255,7 +3259,10 @@ static int sep_reconfig_shared_area(struct sep_device *sep) /* Poll for SEP response */ ret_val = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR); - while (ret_val != 0xffffffff && ret_val != sep->shared_bus) + end_time = jiffies + (WAIT_TIME * HZ); + + while ((time_before(jiffies, end_time)) && (ret_val != 0xffffffff) && + (ret_val != sep->shared_bus)) ret_val = sep_read_reg(sep, HW_HOST_SEP_HOST_GPR1_REG_ADDR); /* Check the return value (register) */ |