xen/blkback: Fix interface.c checkpatch warnings .. except

+               sring_x86_64 = (struct blkif_x86_64_sring *)blkif->blk_ring_area->addr;

WARNING: line over 80 characters
+               BACK_RING_INIT(&blkif->blk_rings.x86_64, sring_x86_64, PAGE_SIZE);

as breaking them up really does not help that much.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/drivers/xen/blkback/interface.c b/drivers/xen/blkback/interface.c
index 7d59f13..163aed4 100644 (file)
--- a/drivers/xen/blkback/interface.c
+++ b/drivers/xen/blkback/interface.c
@@ -86,7 +86,8 @@ static void unmap_frontend_page(struct blkif_st *blkif)
                BUG();
 }
 
-int blkif_map(struct blkif_st *blkif, unsigned long shared_page, unsigned int evtchn)
+int blkif_map(struct blkif_st *blkif, unsigned long shared_page,
+             unsigned int evtchn)
 {
        int err;
 
@@ -94,7 +95,8 @@ int blkif_map(struct blkif_st *blkif, unsigned long shared_page, unsigned int ev
        if (blkif->irq)
                return 0;
 
-       if ( (blkif->blk_ring_area = alloc_vm_area(PAGE_SIZE)) == NULL )
+       blkif->blk_ring_area = alloc_vm_area(PAGE_SIZE);
+       if (!blkif->blk_ring_area)
                return -ENOMEM;
 
        err = map_frontend_page(blkif, shared_page);
@@ -131,8 +133,7 @@ int blkif_map(struct blkif_st *blkif, unsigned long shared_page, unsigned int ev
 
        err = bind_interdomain_evtchn_to_irqhandler(
                blkif->domid, evtchn, blkif_be_int, 0, "blkif-backend", blkif);
-       if (err < 0)
-       {
+       if (err < 0) {
                unmap_frontend_page(blkif);
                free_vm_area(blkif->blk_ring_area);
                blkif->blk_rings.common.sring = NULL;