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intel_menlow: don't set max_state a negative value

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max_state is unsigned long.
don't set max_state a negative value

Cc : Thomas Sujith <sujith.thomas@intel.com>
Cc : Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Zhang Rui 2008-09-11 10:56:00 +08:00 committed by Len Brown
parent 2830c9fb8e
commit c2d06fe338
1 changed files with 4 additions and 1 deletions
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5
drivers/misc/intel_menlow.c
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@ -71,6 +71,9 @@ static int memory_get_int_max_bandwidth(struct thermal_cooling_device *cdev,
if (ACPI_FAILURE(status))
return -EFAULT;
if (!value)
return -EINVAL;
*max_state = value - 1;
return 0;
}
@ -121,7 +124,7 @@ static int memory_set_cur_bandwidth(struct thermal_cooling_device *cdev,
if (memory_get_int_max_bandwidth(cdev, &max_state))
return -EFAULT;
if (max_state < 0 || state > max_state)
if (state > max_state)
return -EINVAL;
arg_list.count = 1;