Replace manual unsafe zeroing of block structures with the safe
pin_init::zeroed() helper.

Signed-off-by: Jason Hall <jason.kei.hall@gmail.com>
---
 rust/kernel/block/mq/gen_disk.rs | 4 +---
 rust/kernel/block/mq/tag_set.rs  | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/rust/kernel/block/mq/gen_disk.rs b/rust/kernel/block/mq/gen_disk.rs
index 1ce815c8cdab..649c3d9b1ff9 100644
--- a/rust/kernel/block/mq/gen_disk.rs
+++ b/rust/kernel/block/mq/gen_disk.rs
@@ -106,9 +106,7 @@ pub fn build<T: Operations>(
             // SAFETY: T::QueueData was created by the call to `into_foreign()` above
             drop(unsafe { T::QueueData::from_foreign(data) });
         });
-
-        // SAFETY: `bindings::queue_limits` contain only fields that are valid when zeroed.
-        let mut lim: bindings::queue_limits = unsafe { core::mem::zeroed() };
+        let mut lim: bindings::queue_limits = pin_init::zeroed();
 
         lim.logical_block_size = self.logical_block_size;
         lim.physical_block_size = self.physical_block_size;
diff --git a/rust/kernel/block/mq/tag_set.rs b/rust/kernel/block/mq/tag_set.rs
index c3cf56d52bee..dae9df408a86 100644
--- a/rust/kernel/block/mq/tag_set.rs
+++ b/rust/kernel/block/mq/tag_set.rs
@@ -38,9 +38,7 @@ pub fn new(
         num_tags: u32,
         num_maps: u32,
     ) -> impl PinInit<Self, error::Error> {
-        // SAFETY: `blk_mq_tag_set` only contains integers and pointers, which
-        // all are allowed to be 0.
-        let tag_set: bindings::blk_mq_tag_set = unsafe { core::mem::zeroed() };
+        let tag_set: bindings::blk_mq_tag_set = pin_init::zeroed();
         let tag_set: Result<_> = core::mem::size_of::<RequestDataWrapper>()
             .try_into()
             .map(|cmd_size| {
-- 
2.43.0