Commit 6733dd4a authored by Saurabh Sengar's avatar Saurabh Sengar Committed by Wei Liu
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drm/hyperv: Add error message for fb size greater than allocated 



Add error message when the size of requested framebuffer is more than
the allocated size by vmbus mmio region for framebuffer.

Signed-off-by: default avatarSaurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: default avatarDexuan Cui <decui@microsoft.com>
Link: https://lore.kernel.org/r/1649737739-10113-1-git-send-email-ssengar@linux.microsoft.com


Signed-off-by: default avatarWei Liu <wei.liu@kernel.org>
parent 23e118a4

drivers/gpu/drm/hyperv/hyperv_drm_modeset.c

+4 −1
Original line number Diff line number Diff line
@@ -123,8 +123,11 @@ static int hyperv_pipe_check(struct drm_simple_display_pipe *pipe, 
	if (fb->format->format != DRM_FORMAT_XRGB8888)

		return -EINVAL;



	if (fb->pitches[0] * fb->height > hv->fb_size)

	if (fb->pitches[0] * fb->height > hv->fb_size) {

		drm_err(&hv->dev, "fb size requested by %s for %dX%d (pitch %d) greater than %ld\n",

			current->comm, fb->width, fb->height, fb->pitches[0], hv->fb_size);

		return -EINVAL;

	}



	return 0;

}