5.15-stable review patch. If anyone has any objections, please let me know.
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From: Haoran Liu liuhaoran14@163.com
[ Upstream commit 3c28b239620e249b68beeca17f429e317fa6b8d4 ]
This patch adds robust error handling to the meson_plane_create function in drivers/gpu/drm/meson/meson_plane.c. The function previously lacked proper handling for potential failure scenarios of the drm_universal_plane_init call.
Signed-off-by: Haoran Liu liuhaoran14@163.com Reviewed-by: Neil Armstrong neil.armstrong@linaro.org Link: https://lore.kernel.org/r/20231129113405.33057-1-liuhaoran14@163.com [narmstrong: fixe the commit subject] Signed-off-by: Neil Armstrong neil.armstrong@linaro.org Link: https://patchwork.freedesktop.org/patch/msgid/20231129113405.33057-1-liuhaor... Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/meson/meson_plane.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/meson/meson_plane.c b/drivers/gpu/drm/meson/meson_plane.c index 44aa52629443..c17abaf9b54d 100644 --- a/drivers/gpu/drm/meson/meson_plane.c +++ b/drivers/gpu/drm/meson/meson_plane.c @@ -533,6 +533,7 @@ int meson_plane_create(struct meson_drm *priv) struct meson_plane *meson_plane; struct drm_plane *plane; const uint64_t *format_modifiers = format_modifiers_default; + int ret;
meson_plane = devm_kzalloc(priv->drm->dev, sizeof(*meson_plane), GFP_KERNEL); @@ -547,12 +548,16 @@ int meson_plane_create(struct meson_drm *priv) else if (meson_vpu_is_compatible(priv, VPU_COMPATIBLE_G12A)) format_modifiers = format_modifiers_afbc_g12a;
- drm_universal_plane_init(priv->drm, plane, 0xFF, - &meson_plane_funcs, - supported_drm_formats, - ARRAY_SIZE(supported_drm_formats), - format_modifiers, - DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane"); + ret = drm_universal_plane_init(priv->drm, plane, 0xFF, + &meson_plane_funcs, + supported_drm_formats, + ARRAY_SIZE(supported_drm_formats), + format_modifiers, + DRM_PLANE_TYPE_PRIMARY, "meson_primary_plane"); + if (ret) { + devm_kfree(priv->drm->dev, meson_plane); + return ret; + }
drm_plane_helper_add(plane, &meson_plane_helper_funcs);