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networking: inappropriate ioctl operation should return ENOTTY 

ioctl() calls against a socket with an inappropriate ioctl operation
are incorrectly returning EINVAL rather than ENOTTY:

  [ENOTTY]
      Inappropriate I/O control operation.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=33992

Signed-off-by: Lifeng Sun <lifongsun@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Lifeng Sun 2011-04-27 22:04:51 +00:00 committed by David S. Miller
parent 983960b159
commit 41c31f318a
1 changed files with 3 additions and 3 deletions
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6
net/core/dev.c
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@ -4773,7 +4773,7 @@ static int dev_ifsioc_locked(struct net *net, struct ifreq *ifr, unsigned int cm
* is never reached
*/
WARN_ON(1);
err = -EINVAL;
err = -ENOTTY;
break;
}
@ -5041,7 +5041,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
/* Set the per device memory buffer space.
* Not applicable in our case */
case SIOCSIFLINK:
return -EINVAL;
return -ENOTTY;
/*
* Unknown or private ioctl.
@ -5062,7 +5062,7 @@ int dev_ioctl(struct net *net, unsigned int cmd, void __user *arg)
/* Take care of Wireless Extensions */
if (cmd >= SIOCIWFIRST && cmd <= SIOCIWLAST)
return wext_handle_ioctl(net, &ifr, cmd, arg);
return -EINVAL;
return -ENOTTY;
}
}