[PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup
From: Daniel Vetter <hidden>
Date: 2020-02-21 21:04:35
Also in:
dri-devel, intel-gfx
Subsystem:
drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2020-03-23 · [PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup · Daniel Vetter <hidden>
- 2020-03-06 · Re: [PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup · Sam Ravnborg <hidden>
- 2020-03-03 · Re: [PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup · Gerd Hoffmann <kraxel@redhat.com>
- 2020-03-02 · [PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup · Daniel Vetter <hidden>
- 2020-02-27 · [PATCH 28/51] drm/bochs: Drop explicit drm_mode_config_cleanup · Daniel Vetter <hidden>
Instead rely on the automatic clean, for which we just need to check that drm_mode_config_init succeeded. To avoid an inversion in the cleanup we also have to move the dev_private allocation over to drmm_kzalloc. This is made possible by a preceeding patch which added a drmm_ cleanup action to drm_mode_config_init(), hence all we need to do to ensure that drm_mode_config_cleanup() is run on final drm_device cleanup is check the new error code for _init(). v2: Explain why this cleanup is possible (Laurent). Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by: Daniel Vetter <redacted> Cc: Gerd Hoffmann <kraxel@redhat.com> Cc: virtualization@lists.linux-foundation.org --- drivers/gpu/drm/bochs/bochs.h | 1 - drivers/gpu/drm/bochs/bochs_drv.c | 6 ++---- drivers/gpu/drm/bochs/bochs_kms.c | 14 +++++--------- 3 files changed, 7 insertions(+), 14 deletions(-)
diff --git a/drivers/gpu/drm/bochs/bochs.h b/drivers/gpu/drm/bochs/bochs.h
index 917767173ee6..e5bd1d517a18 100644
--- a/drivers/gpu/drm/bochs/bochs.h
+++ b/drivers/gpu/drm/bochs/bochs.h@@ -92,7 +92,6 @@ void bochs_mm_fini(struct bochs_device *bochs); /* bochs_kms.c */ int bochs_kms_init(struct bochs_device *bochs); -void bochs_kms_fini(struct bochs_device *bochs); /* bochs_fbdev.c */ extern const struct drm_mode_config_funcs bochs_mode_funcs;
diff --git a/drivers/gpu/drm/bochs/bochs_drv.c b/drivers/gpu/drm/bochs/bochs_drv.c
index addb0568c1af..e18c51de1196 100644
--- a/drivers/gpu/drm/bochs/bochs_drv.c
+++ b/drivers/gpu/drm/bochs/bochs_drv.c@@ -7,6 +7,7 @@ #include <drm/drm_drv.h> #include <drm/drm_atomic_helper.h> +#include <drm/drm_managed.h> #include "bochs.h"
@@ -21,10 +22,7 @@ static void bochs_unload(struct drm_device *dev) { struct bochs_device *bochs = dev->dev_private; - bochs_kms_fini(bochs); bochs_mm_fini(bochs); - kfree(bochs); - dev->dev_private = NULL; } static int bochs_load(struct drm_device *dev)
@@ -32,7 +30,7 @@ static int bochs_load(struct drm_device *dev) struct bochs_device *bochs; int ret; - bochs = kzalloc(sizeof(*bochs), GFP_KERNEL); + bochs = drmm_kzalloc(dev, sizeof(*bochs), GFP_KERNEL); if (bochs == NULL) return -ENOMEM; dev->dev_private = bochs;
diff --git a/drivers/gpu/drm/bochs/bochs_kms.c b/drivers/gpu/drm/bochs/bochs_kms.c
index e8cc8156d773..8285c03a6a95 100644
--- a/drivers/gpu/drm/bochs/bochs_kms.c
+++ b/drivers/gpu/drm/bochs/bochs_kms.c@@ -134,7 +134,11 @@ const struct drm_mode_config_funcs bochs_mode_funcs = { int bochs_kms_init(struct bochs_device *bochs) { - drm_mode_config_init(bochs->dev); + int ret; + + ret = drm_mode_config_init(bochs->dev); + if (ret) + return ret; bochs->dev->mode_config.max_width = 8192; bochs->dev->mode_config.max_height = 8192;
@@ -160,11 +164,3 @@ int bochs_kms_init(struct bochs_device *bochs) return 0; } - -void bochs_kms_fini(struct bochs_device *bochs) -{ - if (!bochs->dev->mode_config.num_connector) - return; - - drm_mode_config_cleanup(bochs->dev); -}
--
2.24.1