[PATCH] dev_ioctl should return -EINVAL for unknown ioctl insteadof -ENOTTY

[Wang Sheng-Hui]

The patch is against 3.1-rc3.

Signed-off-by: Wang Sheng-Hui <shhuiw@xxxxxxxxx>
---
 net/core/dev.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/net/core/dev.c b/net/core/dev.c
index 17d67b5..de6033c 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5092,7 +5092,7 @@ 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 -ENOTTY;
+		return -EINVAL;
 	}
 }
 
-- 
1.7.1
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