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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-14 08:03:44 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-10-14 08:03:44 +0200 |
| commit | 64f3b5a6bc49adf77d58eddd72a4bfccd492fa24 (patch) | |
| tree | cdd6aa7a0d21482ae4d1e76d837f3712c8c6481d /rust/kernel/device.rs | |
| parent | USB: chaoskey: Fix possible deadlock chaoskey_list_lock (diff) | |
| parent | Linux 6.12-rc3 (diff) | |
| download | linux-64f3b5a6bc49adf77d58eddd72a4bfccd492fa24.tar.gz linux-64f3b5a6bc49adf77d58eddd72a4bfccd492fa24.zip | |
Merge 6.12-rc3 into usb-next
We need the USB fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'rust/kernel/device.rs')
| -rw-r--r-- | rust/kernel/device.rs | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/rust/kernel/device.rs b/rust/kernel/device.rs index 851018eef885..c8199ee079ef 100644 --- a/rust/kernel/device.rs +++ b/rust/kernel/device.rs @@ -51,18 +51,9 @@ impl Device { /// /// It must also be ensured that `bindings::device::release` can be called from any thread. /// While not officially documented, this should be the case for any `struct device`. - pub unsafe fn from_raw(ptr: *mut bindings::device) -> ARef<Self> { - // SAFETY: By the safety requirements, ptr is valid. - // Initially increase the reference count by one to compensate for the final decrement once - // this newly created `ARef<Device>` instance is dropped. - unsafe { bindings::get_device(ptr) }; - - // CAST: `Self` is a `repr(transparent)` wrapper around `bindings::device`. - let ptr = ptr.cast::<Self>(); - - // SAFETY: `ptr` is valid by the safety requirements of this function. By the above call to - // `bindings::get_device` we also own a reference to the underlying `struct device`. - unsafe { ARef::from_raw(ptr::NonNull::new_unchecked(ptr)) } + pub unsafe fn get_device(ptr: *mut bindings::device) -> ARef<Self> { + // SAFETY: By the safety requirements ptr is valid + unsafe { Self::as_ref(ptr) }.into() } /// Obtain the raw `struct device *`. |
