git: 4cb348eaf6ac - stable/14 - subr_bus: report DEVICE_SUSPEND failures

[Andriy Gapon]

The branch stable/14 has been updated by avg:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=4cb348eaf6ac1326e79bf6c6679dbf1e219574ee

commit 4cb348eaf6ac1326e79bf6c6679dbf1e219574ee
Author:     Andriy Gapon <a...@freebsd.org>
AuthorDate: 2023-01-03 08:39:32 +0000
Commit:     Andriy Gapon <a...@freebsd.org>
CommitDate: 2024-02-17 14:18:04 +0000

    subr_bus: report DEVICE_SUSPEND failures
    
    This greatly aids with diagnosing system suspend failures when
    they are due to a device driver or hardware.
    
    (cherry picked from commit 4d1161f094dd90428847f7e5989767e9957055f4)
---
 sys/kern/subr_bus.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sys/kern/subr_bus.c b/sys/kern/subr_bus.c
index d3db7ca5431c..38c646593a85 100644
--- a/sys/kern/subr_bus.c
+++ b/sys/kern/subr_bus.c
@@ -3463,8 +3463,12 @@ bus_generic_suspend_child(device_t dev, device_t child)
 
        error = DEVICE_SUSPEND(child);
 
-       if (error == 0)
+       if (error == 0) {
                child->flags |= DF_SUSPENDED;
+       } else {
+               printf("DEVICE_SUSPEND(%s) failed: %d\n",
+                   device_get_nameunit(child), error);
+       }
 
        return (error);
 }