Messages in this thread Patch in this message | | | Subject | [PATCH] gpu/drm/drm_framebuffer.c: Add judgement for return value of drm_get_format_info(). | From | "Peng Hao" <> | Date | Fri, 27 Oct 2023 17:19:12 +0800 |
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Since drm_get_format_info() may return NULL, so a judgement of return value is needed to add.
Signed-off-by: Peng Hao <penghao@dingdao.com> --- drivers/gpu/drm/drm_framebuffer.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index aff3746dedfb..be7dd1998c04 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -194,6 +194,10 @@ static int framebuffer_check(struct drm_device *dev, /* now let the driver pick its own format info */ info = drm_get_format_info(dev, r); + if (!info) { + drm_dbg_kms(dev, "no matched format info\n"); + return -EFAULT; + } for (i = 0; i < info->num_planes; i++) { unsigned int width = fb_plane_width(r->width, info, i); -- 2.37.1
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