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| author | Ingo Molnar <mingo@elte.hu> | 2008-07-18 10:14:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-18 10:14:56 +0200 |
| commit | 48ae74443403ab25876959e84785f61bf421ccef (patch) | |
| tree | dd6d8277f2f0e691edf49a38ff9a804f9a1532d0 /drivers/acpi/fan.c | |
| parent | 1b82c9666a6f637ccb3a86d0fbe23d0427076815 (diff) | |
| parent | 5b664cb235e97afbf34db9c4d77f08ebd725335e (diff) | |
| download | kernel-crypto-48ae74443403ab25876959e84785f61bf421ccef.tar.gz kernel-crypto-48ae74443403ab25876959e84785f61bf421ccef.tar.xz kernel-crypto-48ae74443403ab25876959e84785f61bf421ccef.zip | |
Merge branch 'linus' into x86/step
Diffstat (limited to 'drivers/acpi/fan.c')
| -rw-r--r-- | drivers/acpi/fan.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 6cf10cbc1ee..55c17afbe66 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -148,7 +148,7 @@ acpi_fan_write_state(struct file *file, const char __user * buffer, int result = 0; struct seq_file *m = file->private_data; struct acpi_device *device = m->private; - char state_string[12] = { '\0' }; + char state_string[3] = { '\0' }; if (count > sizeof(state_string) - 1) return -EINVAL; @@ -157,6 +157,12 @@ acpi_fan_write_state(struct file *file, const char __user * buffer, return -EFAULT; state_string[count] = '\0'; + if ((state_string[0] < '0') || (state_string[0] > '3')) + return -EINVAL; + if (state_string[1] == '\n') + state_string[1] = '\0'; + if (state_string[1] != '\0') + return -EINVAL; result = acpi_bus_set_power(device->handle, simple_strtoul(state_string, NULL, 0)); |