diff mbox series

[for_v23,8/9] x86/sgx: Don't update free page count if EPC section allocation fails

Message ID 20191010214301.25669-9-sean.j.christopherson@intel.com (mailing list archive)
State New, archived
Headers show
Series x86/sgx: misc page related fixes | expand

Commit Message

Sean Christopherson Oct. 10, 2019, 9:43 p.m. UTC 
Update the number of free pages only after an EPC section is fully
initialized, else the free page count will be left in a bogus state if
allocation fails.

Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
---
 arch/x86/kernel/cpu/sgx/main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/arch/x86/kernel/cpu/sgx/main.c b/arch/x86/kernel/cpu/sgx/main.c
index e22cdbb431a3..48a4f37b5b3c 100644
--- a/arch/x86/kernel/cpu/sgx/main.c
+++ b/arch/x86/kernel/cpu/sgx/main.c
@@ -216,9 +216,10 @@  static bool __init sgx_alloc_epc_section(u64 addr, u64 size,
 
 		page->desc = (addr + (i << PAGE_SHIFT)) | index;
 		list_add_tail(&page->list, &section->unsanitized_page_list);
-		sgx_nr_free_pages++;
 	}
 
+	sgx_nr_free_pages += nr_pages;
+
 	return true;
 
 err_out: