arm64: mte: Fix double-freeing of the temporary tag storage during coredump

Commit 16decce ("arm64: mte: Fix the stack frame size warning in
mte_dump_tag_range()") moved the temporary tag storage array from the
stack to slab but it also introduced an error in double freeing this
object. Remove the in-loop freeing.

Fixes: 16decce ("arm64: mte: Fix the stack frame size warning in mte_dump_tag_range()")
Cc: <[email protected]> # 5.18.x
Signed-off-by: Catalin Marinas <[email protected]>
Reported-by: Seth Jenkins <[email protected]>
Cc: Will Deacon <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Will Deacon <[email protected]>

Author: ctmarinas

arch/arm64/kernel/elfcore.c

@@ -65,7 +65,6 @@ static int mte_dump_tag_range(struct coredump_params *cprm,
 		mte_save_page_tags(page_address(page), tags);
 		put_page(page);
 		if (!dump_emit(cprm, tags, MTE_PAGE_TAG_STORAGE)) {
-			mte_free_tag_storage(tags);
 			ret = 0;
 			break;
 		}