Nathan Chancellor 756924bc18 drm/exynos: Always initialize mapping in exynos_drm_register_dma() ... [ Upstream commit c626f3864b ] In certain randconfigs, clang warns: drivers/gpu/drm/exynos/exynos_drm_dma.c:121:19: warning: variable 'mapping' is uninitialized when used here [-Wuninitialized] priv->mapping = mapping; ^~~~~~~ drivers/gpu/drm/exynos/exynos_drm_dma.c:111:16: note: initialize the variable 'mapping' to silence this warning void *mapping; ^ = NULL 1 warning generated. This occurs when CONFIG_EXYNOS_IOMMU is enabled and both CONFIG_ARM_DMA_USE_IOMMU and CONFIG_IOMMU_DMA are disabled, which makes the code look like void *mapping; if (0) mapping = arm_iommu_create_mapping() else if (0) mapping = iommu_get_domain_for_dev() ... priv->mapping = mapping; Add an else branch that initializes mapping to the -ENODEV error pointer so that there is no more warning and the driver does not change during runtime. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		2021-09-18 13:40:30 +02:00
..
exynos_dp.c
exynos_drm_crtc.c
exynos_drm_crtc.h
exynos_drm_dma.c	drm/exynos: Always initialize mapping in exynos_drm_register_dma()	2021-09-18 13:40:30 +02:00
exynos_drm_dpi.c	drm: Remove unnecessary drm_panel_attach and drm_panel_detach	2020-08-08 09:06:33 +02:00
exynos_drm_drv.c
exynos_drm_drv.h
exynos_drm_dsi.c	drm/exynos: dsi: Simplify with dev_err_probe()	2020-09-21 10:58:48 +09:00
exynos_drm_fb.c
exynos_drm_fb.h
exynos_drm_fbdev.c	drm/exynos: gem: Fix sparse warning	2020-08-26 16:03:05 +09:00
exynos_drm_fbdev.h
exynos_drm_fimc.c
exynos_drm_fimd.c
exynos_drm_g2d.c	drm: exynos: fix common struct sg_table related issues	2020-09-10 08:18:35 +02:00
exynos_drm_g2d.h
exynos_drm_gem.c	dma-mapping updates for 5.10	2020-10-15 14:43:29 -07:00
exynos_drm_gem.h	drm/exynos: gem: Fix sparse warning	2020-08-26 16:03:05 +09:00
exynos_drm_gsc.c
exynos_drm_ipp.c
exynos_drm_ipp.h
exynos_drm_mic.c	drm/exynos: fix ref count leak in mic_pre_enable	2020-06-29 09:38:41 +09:00
exynos_drm_plane.c
exynos_drm_plane.h
exynos_drm_rotator.c
exynos_drm_scaler.c
exynos_drm_vidi.c
exynos_drm_vidi.h
exynos_hdmi.c	drm/exynos: hdmi: Simplify with dev_err_probe()	2020-09-21 10:58:48 +09:00
exynos_mixer.c	drm-misc-next for v5.9:	2020-06-24 15:45:51 +10:00
exynos7_drm_decon.c
exynos5433_drm_decon.c
Kconfig	drm/exynos: depend on COMMON_CLK to fix compile tests	2020-11-23 10:01:32 +09:00
Makefile
regs-decon7.h
regs-decon5433.h
regs-fimc.h
regs-gsc.h
regs-hdmi.h
regs-mixer.h
regs-rotator.h
regs-scaler.h
regs-vp.h