rust: error: add missing newline to pr_warn! calls

[ Upstream commit 6f5c36f ]

Added missing newline at the end of pr_warn! usage
so the log is not missed.

Fixes: 6551a7f ("rust: error: Add Error::from_errno{_unchecked}()")
Reported-by: Miguel Ojeda <[email protected]>
Link: Rust-for-Linux/linux#1139
Signed-off-by: Alban Kurti <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[ Replaced Closes with Link since it fixes part of the issue. - Miguel ]
Signed-off-by: Miguel Ojeda <[email protected]>
Signed-off-by: Sasha Levin <[email protected]>

Author: albankurti

rust/kernel/error.rs

@@ -104,7 +104,7 @@ impl Error {
         if errno < -(bindings::MAX_ERRNO as i32) || errno >= 0 {
             // TODO: Make it a `WARN_ONCE` once available.
             crate::pr_warn!(
-                "attempted to create `Error` with out of range `errno`: {}",
+                "attempted to create `Error` with out of range `errno`: {}\n",
                 errno
             );
             return code::EINVAL;