[PULL,01/11] hw/s390x/ccw: Make s390_ccw_get_dev_info() return a bool

Commit Message

Thomas Huth June 24, 2024, 9:10 a.m. UTC

From: Cédric Le Goater <[e-mail]>

Since s390_ccw_get_dev_info() takes an 'Error **' argument, best
practices suggest to return a bool. See the qapi/error.h Rules
section. While at it, modify the call in s390_ccw_realize().

Signed-off-by: Cédric Le Goater <[e-mail]>
Reviewed-by: Zhenzhong Duan <[e-mail]>
Reviewed-by: Anthony Krowiak <[e-mail]>
Reviewed-by: Eric Farman <[e-mail]>
Reviewed-by: Thomas Huth <[e-mail]>
Message-ID: <[e-mail]>
Signed-off-by: Thomas Huth <[e-mail]>
---
 hw/s390x/s390-ccw.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

Patch

diff --git a/hw/s390x/s390-ccw.c b/hw/s390x/s390-ccw.c
index 5261e66724..a06e91dfb3 100644
--- a/hw/s390x/s390-ccw.c
+++ b/hw/s390x/s390-ccw.c
@@ -71,7 +71,7 @@  IOInstEnding s390_ccw_store(SubchDev *sch)
     return ret;
 }
 
-static void s390_ccw_get_dev_info(S390CCWDevice *cdev,
+static bool s390_ccw_get_dev_info(S390CCWDevice *cdev,
                                   char *sysfsdev,
                                   Error **errp)
 {
@@ -84,12 +84,12 @@  static void s390_ccw_get_dev_info(S390CCWDevice *cdev,
         error_setg(errp, "No host device provided");
         error_append_hint(errp,
                           "Use -device vfio-ccw,sysfsdev=PATH_TO_DEVICE\n");
-        return;
+        return false;
     }
 
     if (!realpath(sysfsdev, dev_path)) {
         error_setg_errno(errp, errno, "Host device '%s' not found", sysfsdev);
-        return;
+        return false;
     }
 
     cdev->mdevid = g_path_get_basename(dev_path);
@@ -98,13 +98,14 @@  static void s390_ccw_get_dev_info(S390CCWDevice *cdev,
     tmp = g_path_get_basename(tmp_dir);
     if (sscanf(tmp, "%2x.%1x.%4x", &cssid, &ssid, &devid) != 3) {
         error_setg_errno(errp, errno, "Failed to read %s", tmp);
-        return;
+        return false;
     }
 
     cdev->hostid.cssid = cssid;
     cdev->hostid.ssid = ssid;
     cdev->hostid.devid = devid;
     cdev->hostid.valid = true;
+    return true;
 }
 
 static void s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
@@ -116,8 +117,7 @@  static void s390_ccw_realize(S390CCWDevice *cdev, char *sysfsdev, Error **errp)
     int ret;
     Error *err = NULL;
 
-    s390_ccw_get_dev_info(cdev, sysfsdev, &err);
-    if (err) {
+    if (!s390_ccw_get_dev_info(cdev, sysfsdev, &err)) {
         goto out_err_propagate;
     }