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| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2023-07-06 12:27:31 +0300 |
|---|---|---|
| committer | Philipp Zabel <philipp.zabel@gmail.com> | 2023-12-01 18:04:14 +0300 |
| commit | ff3670877e7c73d06c2a835d9abb62efcae0145c (patch) | |
| tree | ef0b92c1c962fa0beab67e89d7ded47e3cf9ec99 /drivers/gpu/drm/imx/lcdc | |
| parent | 209e8d2695ee7a67a5b0487bbd1aa75e290d0f41 (diff) | |
| download | linux-ff3670877e7c73d06c2a835d9abb62efcae0145c.tar.xz | |
drm/imx/lcdc: Fix double-free of driver data
The struct imx_lcdc driver data is allocated using devm_drm_dev_alloc()
so it must not be explicitly kfree()d.
Also drm_kms_helper_poll_fini() should not be called as there is no
matching drm_kms_helper_poll_init(). So drop the release function
completely.
Fixes: c87e859cdeb5 ("drm/imx/lcdc: Implement DRM driver for imx25")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706092731.2630232-1-u.kleine-koenig@pengutronix.de
Diffstat (limited to 'drivers/gpu/drm/imx/lcdc')
| -rw-r--r-- | drivers/gpu/drm/imx/lcdc/imx-lcdc.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/drivers/gpu/drm/imx/lcdc/imx-lcdc.c b/drivers/gpu/drm/imx/lcdc/imx-lcdc.c index 0902983374d0..43ddf3a9810b 100644 --- a/drivers/gpu/drm/imx/lcdc/imx-lcdc.c +++ b/drivers/gpu/drm/imx/lcdc/imx-lcdc.c @@ -342,21 +342,12 @@ static const struct drm_mode_config_helper_funcs imx_lcdc_mode_config_helpers = .atomic_commit_tail = drm_atomic_helper_commit_tail_rpm, }; -static void imx_lcdc_release(struct drm_device *drm) -{ - struct imx_lcdc *lcdc = imx_lcdc_from_drmdev(drm); - - drm_kms_helper_poll_fini(drm); - kfree(lcdc); -} - DEFINE_DRM_GEM_DMA_FOPS(imx_lcdc_drm_fops); static struct drm_driver imx_lcdc_drm_driver = { .driver_features = DRIVER_GEM | DRIVER_MODESET | DRIVER_ATOMIC, .fops = &imx_lcdc_drm_fops, DRM_GEM_DMA_DRIVER_OPS_VMAP, - .release = imx_lcdc_release, .name = "imx-lcdc", .desc = "i.MX LCDC driver", .date = "20200716", |