Revision 31a55cf145f2e3d74a7488e86bd0b33b64250fce authored by Dave Airlie on 19 March 2015, 04:01:42 UTC, committed by Dave Airlie on 19 March 2015, 04:01:42 UTC
Some urgent regression fixes to booting failures Exynos DRM occured. Summary: - Fix two urgent null pointer dereference bugs in case of enabling or disabling IOMMU. There was two cases to these issues. One is that plane->crtc is accessed by exynos_disable_plane() when device tree binding is broken so device driver tries to release, which means that the mode set operation isn't invoked yet so plane->crtc is still NULL and exynos_disable_plane() will access NULL pointer. This issue is fixed by checking if the plane->crtc is NULL or not in exynos_disable_plane() Other is that fimd_wait_for_vblank() is called to avoid from page fault with IOMMU before the ctx object is created. At this time, fimd_wait_for_vblank() tries to access ctx->crtc but the ctx->crtc is still NULL because exynos_drm_crtc_create() isn't called yet. This issue is fixed by creating a crtc object and setting it to ctx->crtc prior to fimd_wait_for_vblank() call. For more details, you can refer to below an e-mail thread, http://www.spinics.net/lists/linux-samsung-soc/msg42436.html - Remove unnecessary file not used and fix trivial issues. * 'exynos-drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: drm/exynos: fix the initialization order in FIMD drm/exynos: fix typo config name correctly. drm/exynos: Check for NULL dereference of crtc drm/exynos: IS_ERR() vs NULL bug drm/exynos: remove unused files
File | Mode | Size |
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ARM-gcc.h | -rw-r--r-- | 4.4 KB |
ChangeLog | -rw-r--r-- | 4.3 KB |
Makefile | -rw-r--r-- | 298 bytes |
double_cpdo.c | -rw-r--r-- | 4.0 KB |
entry.S | -rw-r--r-- | 4.5 KB |
extended_cpdo.c | -rw-r--r-- | 4.0 KB |
fpa11.c | -rw-r--r-- | 3.0 KB |
fpa11.h | -rw-r--r-- | 3.9 KB |
fpa11.inl | -rw-r--r-- | 1.6 KB |
fpa11_cpdo.c | -rw-r--r-- | 3.7 KB |
fpa11_cpdt.c | -rw-r--r-- | 8.9 KB |
fpa11_cprt.c | -rw-r--r-- | 9.0 KB |
fpmodule.c | -rw-r--r-- | 5.2 KB |
fpmodule.h | -rw-r--r-- | 1.3 KB |
fpmodule.inl | -rw-r--r-- | 2.2 KB |
fpopcode.c | -rw-r--r-- | 2.2 KB |
fpopcode.h | -rw-r--r-- | 15.1 KB |
fpsr.h | -rw-r--r-- | 3.8 KB |
milieu.h | -rw-r--r-- | 1.9 KB |
single_cpdo.c | -rw-r--r-- | 3.5 KB |
softfloat-macros | -rw-r--r-- | 23.7 KB |
softfloat-specialize | -rw-r--r-- | 12.0 KB |
softfloat.c | -rw-r--r-- | 116.1 KB |
softfloat.h | -rw-r--r-- | 9.8 KB |
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