[PATCH v2 1/3] rust: block: simplify Result<()> in validate_block_size return

[Manas via B4 Relay <devnull+manas18244.iiitd.ac.in@xxxxxxxxxx>]

From: Manas <manas18244@xxxxxxxxxxx>

`Result` is used in place of `Result<()>` because the default type
parameters are unit `()` and `Error` types, which are automatically
inferred. This patch keeps the usage consistent throughout codebase.

Signed-off-by: Manas <manas18244@xxxxxxxxxxx>
---
 rust/kernel/block/mq/gen_disk.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rust/kernel/block/mq/gen_disk.rs b/rust/kernel/block/mq/gen_disk.rs
index 708125dce96a934f32caab44d5e6cff14c4321a9..798c4ae0bdedd58221b5851a630c0e1052e0face 100644
--- a/rust/kernel/block/mq/gen_disk.rs
+++ b/rust/kernel/block/mq/gen_disk.rs
@@ -45,7 +45,7 @@ pub fn rotational(mut self, rotational: bool) -> Self {
 
     /// Validate block size by verifying that it is between 512 and `PAGE_SIZE`,
     /// and that it is a power of two.
-    fn validate_block_size(size: u32) -> Result<()> {
+    fn validate_block_size(size: u32) -> Result {
         if !(512..=bindings::PAGE_SIZE as u32).contains(&size) || !size.is_power_of_two() {
             Err(error::code::EINVAL)
         } else {

-- 
2.47.0