[PATCH] target: xen-scsiback: Return proper -Exx instead of -1.

[Konrad Rzeszutek Wilk]

We could return EINVAL but EBUSY (or EALREADY?)is more appropiate.

CC: jgross@xxxxxxxx
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>
---
 drivers/xen/xen-scsiback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/xen/xen-scsiback.c b/drivers/xen/xen-scsiback.c
index 43bcae8..286e3da 100644
--- a/drivers/xen/xen-scsiback.c
+++ b/drivers/xen/xen-scsiback.c
@@ -800,7 +800,7 @@ static int scsiback_init_sring(struct vscsibk_info *info, grant_ref_t ring_ref,
 	int err;
 
 	if (info->irq)
-		return -1;
+		return -EBUSY;
 
 	err = xenbus_map_ring_valloc(info->dev, &ring_ref, 1, &area);
 	if (err)
-- 
2.5.0

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