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-rw-r--r--net/socket.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/net/socket.c b/net/socket.c
index 0dde6da..06fa217 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -900,6 +900,13 @@ static long sock_ioctl(struct file *file, unsigned cmd, unsigned long arg)
break;
default:
err = sock->ops->ioctl(sock, cmd, arg);
+
+ /*
+ * If this ioctl is unknown try to hand it down
+ * to the NIC driver.
+ */
+ if (err == -ENOIOCTLCMD)
+ err = dev_ioctl(cmd, argp);
break;
}
return err;
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