[PATCH] rust: DamFence: Remove warning about unsignaled drop

[Philipp Stanner <phasta@kernel.org>]

DriverFence::drop() contains a pr_warn!() for when the fence drops
unsignaled. This warning gets into the way of canonical teardown in
Rust: when you drop a lock, it unlocks itself, when you drop a KBox, it
frees itself etc. Congruently, users should be able to tear down fences
they don't care about anymore with ECANCELED, which is already the
default error code.

Remove the warning.

Suggested-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
---
 rust/kernel/dma_buf/dma_fence.rs | 1 -
 1 file changed, 1 deletion(-)

diff --git a/rust/kernel/dma_buf/dma_fence.rs b/rust/kernel/dma_buf/dma_fence.rs
index a1d851656562..2c8001cb9a59 100644
--- a/rust/kernel/dma_buf/dma_fence.rs
+++ b/rust/kernel/dma_buf/dma_fence.rs
@@ -942,7 +942,6 @@ fn drop(&mut self) {
         // SAFETY: `guard` is valid until the `call_rcu()` below.
         let signaled: bool = unsafe { bindings::dma_fence_test_signaled_flag(guard.as_raw()) };
         if !signaled {
-            pr_err!("DriverFence drops unsignaled. Danger of memory corruption!\n");
             // SAFETY: `guard` is valid until the `call_rcu()` below. The fence
             // must not have been signaled yet, which we check directly above.
             unsafe { bindings::dma_fence_set_error(guard.as_raw(), ECANCELED.to_errno()) };
-- 
2.56.0