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linux/drivers/vhost/net.c
Takuya Yoshikawa d3553a5249 vhost-net: fix to check the return value of copy_to/from_user() correctly 
copy_to/from_user() returns the number of bytes that could not be copied.

So we need to check if it is not zero, and in that case, we should return
the error number -EFAULT rather than directly return the return value from
copy_to/from_user().

Signed-off-by: Takuya Yoshikawa <yoshikawa.takuya@oss.ntt.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-05-27 13:55:13 +03:00

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