[S390] qdio: make sure qdr is aligned to page size
kzalloc does not guarantee the required alignment of qdr to page size,
use get_zeroed_page instead.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
diff --git a/drivers/s390/cio/qdio_main.c b/drivers/s390/cio/qdio_main.c
index d10c73c..d156485 100644
--- a/drivers/s390/cio/qdio_main.c
+++ b/drivers/s390/cio/qdio_main.c
@@ -1355,7 +1355,7 @@
goto out_rel;
/* qdr is used in ccw1.cda which is u32 */
- irq_ptr->qdr = kzalloc(sizeof(struct qdr), GFP_KERNEL | GFP_DMA);
+ irq_ptr->qdr = (struct qdr *) get_zeroed_page(GFP_KERNEL | GFP_DMA);
if (!irq_ptr->qdr)
goto out_rel;
WARN_ON((unsigned long)irq_ptr->qdr & 0xfff);
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index f0923a8..56fdd57 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -325,7 +325,7 @@
kmem_cache_free(qdio_q_cache, q);
}
}
- kfree(irq_ptr->qdr);
+ free_page((unsigned long) irq_ptr->qdr);
free_page(irq_ptr->chsc_page);
free_page((unsigned long) irq_ptr);
}