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

[Dan Carpenter]

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>

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 
b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
index b6a0806b06bf..a1c68e6a689e 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c
@@ -368,6 +368,8 @@ static void *vmw_local_fifo_reserve(struct vmw_private 
*dev_priv,
                                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;
                        }
                }
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