Report the actual error code from acpi_bus_register_driver(), it may
help future debugging (typically ENODEV as previously reported, but the
unusual cases are where it may help most).
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vet...@ffwll.ch>
Cc: Zhang Rui <rui.zh...@intel.com>
Cc: "Rafael J. Wysocki" <r...@rjwysocki.net>
Cc: Len Brown <l...@kernel.org>
Cc: linux-a...@vger.kernel.org
Cc: linux-ker...@vger.kernel.org
---
drivers/acpi/video.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3b76aef79a1c..c9d5d060b970 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -2110,7 +2110,8 @@ static int __init intel_opregion_present(void)
int acpi_video_register(void)
{
- int result = 0;
+ int ret;
+
if (register_count) {
/*
* if the function of acpi_video_register is already called,
@@ -2122,9 +2123,9 @@ int acpi_video_register(void)
mutex_init(&video_list_lock);
INIT_LIST_HEAD(&video_bus_head);
- result = acpi_bus_register_driver(&acpi_video_bus);
- if (result < 0)
- return -ENODEV;
+ ret = acpi_bus_register_driver(&acpi_video_bus);
+ if (ret)
+ return ret;
/*
* When the acpi_video_bus is loaded successfully, increase
--
2.1.4
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