[PATCH 3.16 162/233] drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve()

[Ben Hutchings]

3.16.48-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpen...@oracle.com>

commit f0c62e9878024300319ba2438adc7b06c6b9c448 upstream.

If vmalloc() fails then we need to a bit of cleanup before returning.

Fixes: fb1d9738ca05 ("drm/vmwgfx: Add DRM driver for VMware Virtual GPU")
Signed-off-by: Dan Carpenter <dan.carpen...@oracle.com>
Reviewed-by: Sinclair Yeh <s...@vmware.com>
Signed-off-by: Ben Hutchings <b...@decadent.org.uk>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c | 2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -385,6 +385,8 @@ void *vmw_fifo_reserve(struct vmw_privat
                                return fifo_state->static_buffer;
                        else {
                                fifo_state->dynamic_buffer = vmalloc(bytes);
+                               if (!fifo_state->dynamic_buffer)
+                                       goto out_err;
                                return fifo_state->dynamic_buffer;
                        }
                }