When userspace queries the properties of a frame buffer, the number of bits per pixel is derived from the deprecated drm_format_info.cpp[] field, which does not take into account block sizes.
Fix this by using the actual number of bits per pixel instead.
Signed-off-by: Geert Uytterhoeven geert@linux-m68k.org --- Untested. --- drivers/gpu/drm/drm_framebuffer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c index 07f5abc875e97b96..4b9d7b01cb99c03d 100644 --- a/drivers/gpu/drm/drm_framebuffer.c +++ b/drivers/gpu/drm/drm_framebuffer.c @@ -530,7 +530,7 @@ int drm_mode_getfb(struct drm_device *dev, r->height = fb->height; r->width = fb->width; r->depth = fb->format->depth; - r->bpp = fb->format->cpp[0] * 8; + r->bpp = drm_format_info_bpp(fb->format, 0); r->pitch = fb->pitches[0];
/* GET_FB() is an unprivileged ioctl so we must not return a