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Message-ID: <20151021072956.GO13786@phenom.ffwll.local> Date: Wed, 21 Oct 2015 09:29:56 +0200 From: Daniel Vetter <daniel@...ll.ch> To: Insu Yun <wuninsu@...il.com> Cc: airlied@...ux.ie, dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org, yeongjin.jang@...ech.edu, taesoo@...ech.edu, insu@...ech.edu, changwoo@...ech.edu Subject: Re: [PATCH] drm: correctly check failed allocation On Mon, Oct 19, 2015 at 04:33:30PM +0000, Insu Yun wrote: > drm_property_create_range can be failed in memory pressure > Therefore, check return value and handle an error > > Signed-off-by: Insu Yun <wuninsu@...il.com> There's also other drm_property_create_* functions, and we miss error handling for a bunch more of these places. Are you working on more patches? Merged this one to drm-misc meanwhile, thanks. -Daniel > --- > drivers/gpu/drm/drm_crtc.c | 30 ++++++++++++++++++++++++++++++ > 1 file changed, 30 insertions(+) > > diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c > index 33d877c..5fb6583 100644 > --- a/drivers/gpu/drm/drm_crtc.c > +++ b/drivers/gpu/drm/drm_crtc.c > @@ -1525,6 +1525,9 @@ int drm_mode_create_tv_properties(struct drm_device *dev, > "select subconnector", > drm_tv_select_enum_list, > ARRAY_SIZE(drm_tv_select_enum_list)); > + if (!tv_selector) > + goto nomem; > + > dev->mode_config.tv_select_subconnector_property = tv_selector; > > tv_subconnector = > @@ -1532,6 +1535,8 @@ int drm_mode_create_tv_properties(struct drm_device *dev, > "subconnector", > drm_tv_subconnector_enum_list, > ARRAY_SIZE(drm_tv_subconnector_enum_list)); > + if (!tv_subconnector) > + goto nomem; > dev->mode_config.tv_subconnector_property = tv_subconnector; > > /* > @@ -1539,42 +1544,67 @@ int drm_mode_create_tv_properties(struct drm_device *dev, > */ > dev->mode_config.tv_left_margin_property = > drm_property_create_range(dev, 0, "left margin", 0, 100); > + if (!dev->mode_config.tv_left_margin_property) > + goto nomem; > > dev->mode_config.tv_right_margin_property = > drm_property_create_range(dev, 0, "right margin", 0, 100); > + if (!dev->mode_config.tv_right_margin_property) > + goto nomem; > > dev->mode_config.tv_top_margin_property = > drm_property_create_range(dev, 0, "top margin", 0, 100); > + if (!dev->mode_config.tv_top_margin_property) > + goto nomem; > > dev->mode_config.tv_bottom_margin_property = > drm_property_create_range(dev, 0, "bottom margin", 0, 100); > + if (!dev->mode_config.tv_bottom_margin_property) > + goto nomem; > > dev->mode_config.tv_mode_property = > drm_property_create(dev, DRM_MODE_PROP_ENUM, > "mode", num_modes); > + if (!dev->mode_config.tv_mode_property) > + goto nomem; > + > for (i = 0; i < num_modes; i++) > drm_property_add_enum(dev->mode_config.tv_mode_property, i, > i, modes[i]); > > dev->mode_config.tv_brightness_property = > drm_property_create_range(dev, 0, "brightness", 0, 100); > + if (!dev->mode_config.tv_brightness_property) > + goto nomem; > > dev->mode_config.tv_contrast_property = > drm_property_create_range(dev, 0, "contrast", 0, 100); > + if (!dev->mode_config.tv_contrast_property) > + goto nomem; > > dev->mode_config.tv_flicker_reduction_property = > drm_property_create_range(dev, 0, "flicker reduction", 0, 100); > + if (!dev->mode_config.tv_flicker_reduction_property) > + goto nomem; > > dev->mode_config.tv_overscan_property = > drm_property_create_range(dev, 0, "overscan", 0, 100); > + if (!dev->mode_config.tv_overscan_property) > + goto nomem; > > dev->mode_config.tv_saturation_property = > drm_property_create_range(dev, 0, "saturation", 0, 100); > + if (!dev->mode_config.tv_saturation_property) > + goto nomem; > > dev->mode_config.tv_hue_property = > drm_property_create_range(dev, 0, "hue", 0, 100); > + if (!dev->mode_config.tv_hue_property) > + goto nomem; > > return 0; > +nomem: > + return -ENOMEM; > } > EXPORT_SYMBOL(drm_mode_create_tv_properties); > > -- > 1.9.1 > > _______________________________________________ > dri-devel mailing list > dri-devel@...ts.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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