[patch] drm/vmwgfx: add error checking for kmalloc()

[Dan Carpenter]

Return -ENOMEM if kmalloc() fails.

Fixes: d5bde956630b ('drm/vmwgfx: Emulate legacy shaders on guest-backed 
devices v2')
Signed-off-by: Dan Carpenter <dan.carpenter at oracle.com>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
index 217d941b8176..23a32fd59a57 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
@@ -779,6 +779,8 @@ vmw_compat_shader_man_create(struct vmw_private *dev_priv)
        int ret;

        man = kzalloc(sizeof(*man), GFP_KERNEL);
+       if (!man)
+               return ERR_PTR(-ENOMEM);

        man->dev_priv = dev_priv;
        INIT_LIST_HEAD(&man->list);