From: Rob Clark <robdclark@gmail.com>
Date: Mon, 8 Sep 2014 18:24:57 +0000 (-0400)
Subject: drm/msm: don't crash if no msm.vram param
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=3a10ba8c6b68d9b7f519cd25f903be2d43b37d9d;p=GitHub%2FLineageOS%2FG12%2Fandroid_kernel_amlogic_linux-4.9.git

drm/msm: don't crash if no msm.vram param

If VRAM carveout is used, due to no IOMMU, we should have a default
value for msm.vram so that we don't simply crash.

Reported-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
---

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 26ee80db17af..fcf95680413d 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -52,7 +52,7 @@ module_param(reglog, bool, 0600);
 #define reglog 0
 #endif
 
-static char *vram;
+static char *vram = "16m";
 MODULE_PARM_DESC(vram, "Configure VRAM size (for devices without IOMMU/GPUMMU");
 module_param(vram, charp, 0);