[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);