Drivers: hv: vmbus: Fix sysfs output format for ring buffer index

The sysfs attributes out_read_index and out_write_index in
vmbus_drv.c currently use %d to print outbound.current_read_index
and outbound.current_write_index.

These fields are u32 values, so printing them with %d (signed) is
not logically correct. Update the format specifier to %u to
correctly match their type.

No functional change, only fixes the sysfs output format.

Signed-off-by: Alok Tiwari <alok.a.tiwari@oracle.com>
Reviewed-by: Michael Kelley <mhklinux@outlook.com>
Signed-off-by: Wei Liu <wei.liu@kernel.org>

Author: aloktiwa

drivers/hv/vmbus_drv.c

@@ -322,7 +322,7 @@ static ssize_t out_read_index_show(struct device *dev,
 					  &outbound);
 	if (ret < 0)
 		return ret;
-	return sysfs_emit(buf, "%d\n", outbound.current_read_index);
+	return sysfs_emit(buf, "%u\n", outbound.current_read_index);
 }
 static DEVICE_ATTR_RO(out_read_index);
 
@@ -341,7 +341,7 @@ static ssize_t out_write_index_show(struct device *dev,
 					  &outbound);
 	if (ret < 0)
 		return ret;
-	return sysfs_emit(buf, "%d\n", outbound.current_write_index);
+	return sysfs_emit(buf, "%u\n", outbound.current_write_index);
 }
 static DEVICE_ATTR_RO(out_write_index);