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authorJuergen Gross <jgross@suse.com>2016-10-31 16:58:41 +0300
committerJuergen Gross <jgross@suse.com>2016-11-07 15:55:28 +0300
commit1080b38db49f7e3075aa9cd5a87f1587282cc0b0 (patch)
tree8a748b9e4e2b217ba5299ec5f9c08c02a3e2b1b9 /drivers/scsi/xen-scsifront.c
parent58faf07b76817782ea20c392639569ea613cd439 (diff)
downloadlinux-1080b38db49f7e3075aa9cd5a87f1587282cc0b0.tar.xz
xen: make use of xenbus_read_unsigned() in xen-scsifront
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible. Signed-off-by: Juergen Gross <jgross@suse.com> Acked-by: David Vrabel <david.vrabel@citrix.com>
Diffstat (limited to 'drivers/scsi/xen-scsifront.c')
-rw-r--r--drivers/scsi/xen-scsifront.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 9dc8687bf048..7e817c64f385 100644
--- a/drivers/scsi/xen-scsifront.c
+++ b/drivers/scsi/xen-scsifront.c
@@ -1060,13 +1060,9 @@ static void scsifront_read_backend_params(struct xenbus_device *dev,
struct vscsifrnt_info *info)
{
unsigned int sg_grant, nr_segs;
- int ret;
struct Scsi_Host *host = info->host;
- ret = xenbus_scanf(XBT_NIL, dev->otherend, "feature-sg-grant", "%u",
- &sg_grant);
- if (ret != 1)
- sg_grant = 0;
+ sg_grant = xenbus_read_unsigned(dev->otherend, "feature-sg-grant", 0);
nr_segs = min_t(unsigned int, sg_grant, SG_ALL);
nr_segs = max_t(unsigned int, nr_segs, VSCSIIF_SG_TABLESIZE);
nr_segs = min_t(unsigned int, nr_segs,