copy_to_user() returns nonzero value on error, this value may be any
value between 0 and requested count, not only requested count.
Signed-off-by: Kulikov Vasiliy <segooon@xxxxxxxxx>
---
net/sunrpc/auth_gss/auth_gss.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index 8da2a0e..232d7dc 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -610,7 +610,7 @@ gss_pipe_upcall(struct file *filp, struct rpc_pipe_msg *msg,
unsigned long left;
left = copy_to_user(dst, data, mlen);
- if (left == mlen) {
+ if (left)
msg->errno = -EFAULT;
return -EFAULT;
}
--
1.7.0.4
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