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[09/12] xen: make use of xenbus_read_unsigned() in xen-scsifront

Message ID 1477932510-28594-10-git-send-email-jgross@suse.com (mailing list archive)
State New, archived
Headers show

Commit Message

Juergen Gross Oct. 31, 2016, 4:48 p.m. UTC 
Use xenbus_read_unsigned() instead of xenbus_scanf() when possible.

Signed-off-by: Juergen Gross <jgross@suse.com>
---
 drivers/scsi/xen-scsifront.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)
diff mbox

Patch

diff --git a/drivers/scsi/xen-scsifront.c b/drivers/scsi/xen-scsifront.c
index 9dc8687..7e817c6 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,