summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/msm/adreno/adreno_gpu.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/msm/adreno/adreno_gpu.c')
-rw-r--r--drivers/gpu/drm/msm/adreno/adreno_gpu.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
index a9c0ac937b00..9acbbc0f3232 100644
--- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c
@@ -56,7 +56,6 @@ static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname,
return ret;
mem_phys = r.start;
- mem_size = resource_size(&r);
/* Request the MDT file for the firmware */
fw = adreno_request_fw(to_adreno_gpu(gpu), fwname);
@@ -72,6 +71,13 @@ static int zap_shader_load_mdt(struct msm_gpu *gpu, const char *fwname,
goto out;
}
+ if (mem_size > resource_size(&r)) {
+ DRM_DEV_ERROR(dev,
+ "memory region is too small to load the MDT\n");
+ ret = -E2BIG;
+ goto out;
+ }
+
/* Allocate memory for the firmware image */
mem_region = memremap(mem_phys, mem_size, MEMREMAP_WC);
if (!mem_region) {