kernel/linux.git/drivers/gpu/drm/tiny/sharp-memory.c, branch v6.19.11

drm/tiny: sharp-memory: fix pointer error dereference

2026-03-12T11:09:07+00:00

[ Upstream commit 46120745bb4e7e1f09959624716b4c5d6e2c2e9e ] The function devm_drm_dev_alloc() returns a pointer error upon failure not NULL. Change null check to pointer error check. Detected by Smatch: drivers/gpu/drm/tiny/sharp-memory.c:549 sharp_memory_probe() error: 'smd' dereferencing possible ERR_PTR() Fixes: b8f9f21716fec ("drm/tiny: Add driver for Sharp Memory LCD") Signed-off-by: Ethan Tidmore Reviewed-by: Thomas Zimmermann Signed-off-by: Thomas Zimmermann Link: https://patch.msgid.link/20260216040438.43702-1-ethantidmore06@gmail.com Signed-off-by: Sasha Levin

drm/sharp-memory: Do not access GEM-DMA vaddr directly

2025-08-11T16:49:55+00:00

Use DRM's shadow-plane helper to map and access the GEM object's buffer within kernel address space. Encapsulates the vmap logic in the GEM-DMA helpers. The sharp-memory driver currently reads the vaddr field from the GME buffer object directly. This only works because GEM code 'automagically' sets vaddr. Shadow-plane helpers perform the same steps, but with correct abstraction behind drm_gem_vmap(). The shadow-plane state provides the buffer address in kernel address space and the format-conversion state. v2: - fix typo in commit description Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Link: https://lore.kernel.org/r/20250627152327.8244-1-tzimmermann@suse.de

drm: remove driver date from struct drm_driver and all drivers

2024-12-05T10:35:42+00:00

We stopped using the driver initialized date in commit 7fb8af6798e8 ("drm: deprecate driver date") and (eventually) started returning "0" for drm_version ioctl instead. Finish the job, and remove the unused date member from struct drm_driver, its initialization from drivers, along with the common DRIVER_DATE macros. v2: Also update drivers/accel (kernel test robot) Reviewed-by: Javier Martinez Canillas Acked-by: Alex Deucher Acked-by: Simon Ser Acked-by: Jeffrey Hugo Acked-by: Lucas De Marchi Acked-by: Dmitry Baryshkov # msm Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/1f2bf2543aed270a06f6c707fd6ed1b78bf16712.1733322525.git.jani.nikula@intel.com Signed-off-by: Jani Nikula

drm/client: Move public client header to clients/ subdirectory

2024-11-15T08:42:13+00:00

Move the public header file drm_client_setup.h to the clients/ subdirectory and update all drivers. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Jocelyn Falempe Link: https://patchwork.freedesktop.org/patch/msgid/20241108154600.126162-3-tzimmermann@suse.de

drm/tiny: Add driver for Sharp Memory LCD

2024-10-18T23:21:32+00:00

Add support for the monochrome Sharp Memory LCDs. Co-developed-by: Mehdi Djait Signed-off-by: Mehdi Djait Signed-off-by: Alex Lanzano Reviewed-by: Dmitry Baryshkov Acked-by: Uwe Kleine-König Link: https://patchwork.freedesktop.org/patch/msgid/20241015230617.3020230-3-lanzano.alex@gmail.com Signed-off-by: Dmitry Baryshkov