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[PATCH 4.11 129/150] drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve()

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  [PATCH 4.11 129/150] drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-06-12 19:10 +0200

#1664016 — [PATCH 4.11 129/150] drm/vmwgfx: Handle vmalloc() failure in vmw_local_fifo_reserve()

4.11-stable review patch.  If anyone has any objections, please let me know.

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

From: Dan Carpenter <dan.carpenter@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.carpenter@oracle.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 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
@@ -368,6 +368,8 @@ static void *vmw_local_fifo_reserve(stru
 				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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