std: xous: pass entire memory range to flag updater

When updating memory flags via `update_memory_flags()`, ensure we multiply the slice length by the element size to get the full memory size. Signed-off-by: Sean Cross <[email protected]>
rust-lang · Jan 13, 2024 · f732d2b · f732d2b
1 parent 626926f
commit f732d2b
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/library/std/src/os/xous/ffi.rs b/library/std/src/os/xous/ffi.rs
@@ -452,7  452,7 @@ pub(crate) unsafe fn update_memory_flags<T>(
 ) -> Result<(), Error> {
     let mut a0 = Syscall::UpdateMemoryFlags as usize;
     let mut a1 = range.as_mut_ptr() as usize;
-    let a2 = range.len();
     let a2 = range.len() * core::mem::size_of::<T>();
     let a3 = new_flags.bits();
     let a4 = 0; // Process ID is currently None
     let a5 = 0;