Only a positive return value indicates success.
Signed-off-by: Jan Beulich <[email protected]>
---
drivers/char/tpm/xen-tpmfront.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- 4.7-rc6-xenbus_scanf.orig/drivers/char/tpm/xen-tpmfront.c
+++ 4.7-rc6-xenbus_scanf/drivers/char/tpm/xen-tpmfront.c
@@ -344,7 +344,7 @@ static void backend_changed(struct xenbu
break;
if (xenbus_scanf(XBT_NIL, dev->otherend,
- "feature-protocol-v2", "%d", &val) < 0)
+ "feature-protocol-v2", "%d", &val) <= 0)
val = 0;
if (!val) {
xenbus_dev_fatal(dev, -EINVAL,
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