Thomas Zimmermann 13cc3e6b2a drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up ... [ Upstream commit abf7b30d7f ] In the Cirrus driver, the regular clean-up code also performs the clean-up of a failed initialization. If the fbdev's framebuffer was not initialized, the clean-up will fail within drm_framebuffer_unregister_private. Booting with cirrus.bpp=16 triggers this bug. The framebuffer is currently stored directly within struct cirrus_fbdev. To fix the bug, we turn it into a pointer that is only set for initialized framebuffers. The fbdev's clean-up code skips uninitialized framebuffers. The memory for struct drm_framebuffer is allocated dynamically. This requires additional error handling within cirrusfb_create. The framebuffer clean-up is now performed by drm_framebuffer_put, which also frees the data strcuture's memory. Link: https://bugzilla.suse.com/show_bug.cgi?id=1101822 Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Link: http://patchwork.freedesktop.org/patch/msgid/20180720112743.27159-1-tzimmermann@suse.de Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-04-20 09:16:00 +02:00
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cirrus_drv.c	drm/cirrus: Use the drm_driver.dumb_destroy default	2017-08-16 20:14:22 +02:00
cirrus_drv.h	drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up	2019-04-20 09:16:00 +02:00
cirrus_fbdev.c	drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up	2019-04-20 09:16:00 +02:00
cirrus_main.c	drm/cirrus: cirrus_framebuffer -> drm_framebuffer	2018-05-18 14:52:30 +01:00
cirrus_mode.c	drm/cirrus: Use drm_framebuffer_put to avoid kernel oops in clean-up	2019-04-20 09:16:00 +02:00
cirrus_ttm.c	drm/ttm: add bo as parameter to the ttm_tt_create callback	2018-03-14 14:38:27 -05:00
Kconfig	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into drm-next	2017-01-27 11:00:42 +10:00
Makefile	drm/cirrus: fix include notation and remove -Iinclude/drm flag	2017-05-16 17:18:56 +02:00