[PATCH v3] drm/hyperv: Added error message for fb size greater than allocated

[Saurabh Sengar]

Added 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@xxxxxxxxxxxxxxxxxxx>
---
v2 -> v3 : then -> than (typo fix)

 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..6634818 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, "hv->hdev, fb size requested by process %s for %d X %d (pitch %d) is greater than allocated size %ld\n",
+		current->comm, fb->width, fb->height, fb->pitches[0], hv->fb_size);
 		return -EINVAL;
+	}
 
 	return 0;
 }
-- 
1.8.3.1