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

Signed-off-by: Saurabh Sengar ssengar@linux.microsoft.com --- v3 -> v4 : * Shorter error message * Alignment match for open parenthesis * Added -> Add (typo fix in commit message)

drivers/gpu/drm/hyperv/hyperv_drm_modeset.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c index e82b815..27f4fcb 100644 --- a/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c +++ b/drivers/gpu/drm/hyperv/hyperv_drm_modeset.c @@ -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; }