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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-10-28 01:27:21 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-10-28 01:27:21 +0100 |
| commit | 400fc45273d53837390bf1a24f5930c1ad9de61e (patch) | |
| tree | c7f61589708cfd13dff02fdc0644e774cf1db829 /kernel/power | |
| parent | Merge branch 'pm-devfreq' (diff) | |
| parent | PM / QoS: simplify pm_qos_power_write() (diff) | |
| download | linux-400fc45273d53837390bf1a24f5930c1ad9de61e.tar.xz linux-400fc45273d53837390bf1a24f5930c1ad9de61e.zip | |
Merge branch 'pm-qos'
* pm-qos:
PM / QoS: simplify pm_qos_power_write()
Diffstat (limited to 'kernel/power')
| -rw-r--r-- | kernel/power/qos.c | 26 |
1 files changed, 4 insertions, 22 deletions
diff --git a/kernel/power/qos.c b/kernel/power/qos.c index a394297f8b2f..8dff9b48075a 100644 --- a/kernel/power/qos.c +++ b/kernel/power/qos.c @@ -558,30 +558,12 @@ static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf, if (count == sizeof(s32)) { if (copy_from_user(&value, buf, sizeof(s32))) return -EFAULT; - } else if (count <= 11) { /* ASCII perhaps? */ - char ascii_value[11]; - unsigned long int ulval; + } else { int ret; - if (copy_from_user(ascii_value, buf, count)) - return -EFAULT; - - if (count > 10) { - if (ascii_value[10] == '\n') - ascii_value[10] = '\0'; - else - return -EINVAL; - } else { - ascii_value[count] = '\0'; - } - ret = kstrtoul(ascii_value, 16, &ulval); - if (ret) { - pr_debug("%s, 0x%lx, 0x%x\n", ascii_value, ulval, ret); - return -EINVAL; - } - value = (s32)lower_32_bits(ulval); - } else { - return -EINVAL; + ret = kstrtos32_from_user(buf, count, 16, &value); + if (ret) + return ret; } req = filp->private_data; |