Commit 77f4f14e08 for qemu.org

commit 77f4f14e08184b47f1356269ae2c5db039d16af2
Author: Markus Armbruster <armbru@redhat.com>
Date:   Fri Nov 21 13:14:30 2025 +0100

    hw/virtio: Use error_setg_file_open() for a better error message

    The error message changes from

        vhost-vsock: failed to open vhost device: REASON

    to

        Could not open '/dev/vhost-vsock': REASON

    I think the exact file name is more useful to know than the file's
    purpose.

    Signed-off-by: Markus Armbruster <armbru@redhat.com>
    Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
    Message-ID: <20251121121438.1249498-8-armbru@redhat.com>
    Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>

diff --git a/hw/virtio/vhost-vsock.c b/hw/virtio/vhost-vsock.c
index 107d88babe..7940b60d8a 100644
--- a/hw/virtio/vhost-vsock.c
+++ b/hw/virtio/vhost-vsock.c
@@ -153,8 +153,7 @@ static void vhost_vsock_device_realize(DeviceState *dev, Error **errp)
     } else {
         vhostfd = open("/dev/vhost-vsock", O_RDWR);
         if (vhostfd < 0) {
-            error_setg_errno(errp, errno,
-                             "vhost-vsock: failed to open vhost device");
+            error_setg_file_open(errp, errno, "/dev/vhost-vsock");
             return;
         }