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drivers/char/dsp56k.c: drop check for negativity of unsigned parameter

Browse source 
[linux-3.16-rc5/drivers/char/dsp56k.c:386]: (style) Checking if unsigned
variable 'arg' is less than zero.

Source code is

            if (arg > 31 || arg < 0)
                return -EINVAL;

But

static long dsp56k_ioctl(struct file *file, unsigned int cmd,
             unsigned long arg)

Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80411
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Andrey Utkin 2014-07-17 15:18:53 +03:00 committed by Greg Kroah-Hartman
parent fe2f17eb3d
commit 389345cf6d
1 changed files with 1 additions and 1 deletions
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2
drivers/char/dsp56k.c
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@ -383,7 +383,7 @@ static long dsp56k_ioctl(struct file *file, unsigned int cmd,
return put_user(status, &hf->status);
}
case DSP56K_HOST_CMD:
if (arg > 31 || arg < 0)
if (arg > 31)
return -EINVAL;
mutex_lock(&dsp56k_mutex);
dsp56k_host_interface.cvr = (u_char)((arg & DSP56K_CVR_HV_MASK) |