commit 389345cf6d71914b39130b1ea04dab1b7bacf6bd
author Andrey Utkin <andrey.krieger.utkin@gmail.com> Thu Jul 17 15:18:53 2014 +0300
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> Thu Jul 17 18:38:37 2014 -0700
tree 609495e2bb25b871e332d427a4ea9e6de647c762
parent fe2f17eb3da38ac0d5a00c511255bf3a33d16d24

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

[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>

drivers/char/dsp56k.c

diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c
index 01a5ca7..8bf70e8 100644
--- a/drivers/char/dsp56k.c
+++ b/drivers/char/dsp56k.c
@@ -383,7 +383,7 @@
 			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) |