[PATCH v3 5/6] rust: miscdevice: set fops.owner from driver module pointer

[Alvin Sun]

Set the miscdevice fops owner field from the driver module pointer
via the `this_module::<T::OwnerModule>()` helper, instead of
defaulting to null.

Signed-off-by: Alvin Sun <alvi...@linux.dev>
---
rust/kernel/miscdevice.rs | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/rust/kernel/miscdevice.rs b/rust/kernel/miscdevice.rs
index 83ce50def5ac9..04fe4697ff564 100644
--- a/rust/kernel/miscdevice.rs
+++ b/rust/kernel/miscdevice.rs
@@ -26,10 +26,11 @@
mm::virt::VmaNew,
prelude::*,
seq_file::SeqFile,
+ this_module,
types::{
ForeignOwnable,
Opaque, //
- },
+ }, //
};
use core::marker::PhantomData;

@@ -430,6 +431,7 @@ impl<T: MiscDevice> MiscdeviceVTable<T> {
} else {
None
},
+ owner: this_module::<T::OwnerModule>().as_ptr(),
..pin_init::zeroed()
};


--
2.43.0

[Andreas Hindborg]

Alvin Sun <alvi...@linux.dev> writes:

> Set the miscdevice fops owner field from the driver module pointer
> via the `this_module::<T::OwnerModule>()` helper, instead of
> defaulting to null.
>
> Signed-off-by: Alvin Sun <alvi...@linux.dev>

Reviewed-by: Andreas Hindborg <a.hin...@kernel.org>


Best regards,
Andreas Hindborg

[Alvin Sun]

Set the miscdevice fops owner field from the driver module pointer
via the `this_module::<T::OwnerModule>()` helper, instead of
defaulting to null.

Reviewed-by: Andreas Hindborg <a.hin...@kernel.org>

Signed-off-by: Alvin Sun <alvi...@linux.dev>
---
rust/kernel/miscdevice.rs | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/rust/kernel/miscdevice.rs b/rust/kernel/miscdevice.rs

index 83ce50def5ac9..2a4329f98614e 100644
--- a/rust/kernel/miscdevice.rs
+++ b/rust/kernel/miscdevice.rs
@@ -24,12 +24,13 @@
IovIterSource, //
},
mm::virt::VmaNew,
+ module::this_module,
prelude::*,
seq_file::SeqFile,

[Gary Guo]

On Tue Jun 23, 2026 at 7:29 AM BST, Alvin Sun wrote:
> Set the miscdevice fops owner field from the driver module pointer
> via the `this_module::<T::OwnerModule>()` helper, instead of
> defaulting to null.
>
> Reviewed-by: Andreas Hindborg <a.hin...@kernel.org>
> Signed-off-by: Alvin Sun <alvi...@linux.dev>

Reviewed-by: Gary Guo <ga...@garyguo.net>

[Alvin Sun]

Set the miscdevice fops owner field from the driver module pointer
via the `this_module::<T::OwnerModule>()` helper, instead of
defaulting to null.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hin...@kernel.org>
Reviewed-by: Gary Guo <ga...@garyguo.net>
Signed-off-by: Alvin Sun <alvi...@linux.dev>

---
rust/kernel/miscdevice.rs | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)

[Alvin Sun]

Set the miscdevice fops owner field from the driver module pointer
via the `this_module::<T::OwnerModule>()` helper, instead of
defaulting to null.

Assisted-by: opencode:glm-5.2
Reviewed-by: Andreas Hindborg <a.hin...@kernel.org>
Reviewed-by: Gary Guo <ga...@garyguo.net>

Acked-by: Danilo Krummrich <da...@kernel.org>

[Alvin Sun]