diff options
Diffstat (limited to 'kernel/pm_qos_params.c')
| -rw-r--r-- | kernel/pm_qos_params.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c index b7e4c362361b..c7a8f453919e 100644 --- a/kernel/pm_qos_params.c +++ b/kernel/pm_qos_params.c @@ -110,6 +110,7 @@ static const struct file_operations pm_qos_power_fops = { .write = pm_qos_power_write, .open = pm_qos_power_open, .release = pm_qos_power_release, + .llseek = noop_llseek, }; /* unlocked internal variant */ @@ -389,14 +390,16 @@ static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf, } else if (count == 11) { /* len('0x12345678/0') */ if (copy_from_user(ascii_value, buf, 11)) return -EFAULT; + if (strlen(ascii_value) != 10) + return -EINVAL; x = sscanf(ascii_value, "%x", &value); if (x != 1) return -EINVAL; - pr_debug(KERN_ERR "%s, %d, 0x%x\n", ascii_value, x, value); + pr_debug("%s, %d, 0x%x\n", ascii_value, x, value); } else return -EINVAL; - pm_qos_req = (struct pm_qos_request_list *)filp->private_data; + pm_qos_req = filp->private_data; pm_qos_update_request(pm_qos_req, value); return count; |