4.12-stable review patch. If anyone has any objections, please let me know.
------------------ From: fred gao <[email protected]> commit ffeaf9aaf97b4bdaf114d6df52f800d71918768c upstream. once error happens in shadow_indirect_ctx function, the variable wa_ctx->indirect_ctx.obj is not initialized but accessed, so the kernel null point panic occurs. Fixes: 894cf7d15634 ("drm/i915/gvt: i915_gem_object_create() returns an error pointer") Signed-off-by: fred gao <[email protected]> Signed-off-by: Zhenyu Wang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/gpu/drm/i915/gvt/cmd_parser.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/gpu/drm/i915/gvt/cmd_parser.c +++ b/drivers/gpu/drm/i915/gvt/cmd_parser.c @@ -2754,7 +2754,7 @@ static int shadow_indirect_ctx(struct in unmap_src: i915_gem_object_unpin_map(obj); put_obj: - i915_gem_object_put(wa_ctx->indirect_ctx.obj); + i915_gem_object_put(obj); return ret; }
