PM QoS: Correct pr_debug() misuse and improve parameter checks
Correct some pr_debug() misuse and add a stronger parameter check to pm_qos_write() for the ASCII hex value case. Thanks to Dan Carpenter for pointing out the problem! Signed-off-by: mark gross <markgross@thegnar.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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@ -389,10 +389,12 @@ static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
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} else if (count == 11) { /* len('0x12345678/0') */
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if (copy_from_user(ascii_value, buf, 11))
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return -EFAULT;
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if (strlen(ascii_value) != 10)
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return -EINVAL;
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x = sscanf(ascii_value, "%x", &value);
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if (x != 1)
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return -EINVAL;
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pr_debug(KERN_ERR "%s, %d, 0x%x\n", ascii_value, x, value);
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pr_debug("%s, %d, 0x%x\n", ascii_value, x, value);
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} else
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return -EINVAL;
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