Commit 97aa7468 authored by Heiko Carstens's avatar Heiko Carstens
Browse files

s390/vmcp: use page_to_virt instead of page_to_phys 



Fix wrong usage of page_to_phys/phys_to_page.

Note: this currently doesn't fix a real bug, since virtual addresses
are indentical to physical ones.

Acked-by: default avatarThomas Richter <tmricht@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent a60bffe5

drivers/s390/char/vmcp.c

+2 −2
Original line number Diff line number Diff line
@@ -72,7 +72,7 @@ static void vmcp_response_alloc(struct vmcp_session *session) 
	if (order > 2)

		page = cma_alloc(vmcp_cma, nr_pages, 0, false);

	if (page) {

		session->response = (char *)page_to_phys(page);

		session->response = (char *)page_to_virt(page);

		session->cma_alloc = 1;

		return;

	}
@@ -89,7 +89,7 @@ static void vmcp_response_free(struct vmcp_session *session) 
	order = get_order(session->bufsize);

	nr_pages = ALIGN(session->bufsize, PAGE_SIZE) >> PAGE_SHIFT;

	if (session->cma_alloc) {

		page = phys_to_page((unsigned long)session->response);

		page = virt_to_page((unsigned long)session->response);

		cma_release(vmcp_cma, page, nr_pages);

		session->cma_alloc = 0;

	} else {