From: Dave Airlie <[email protected]>

  =====================================================================
  | This is a commit scheduled for the next v2.6.34 longterm release. |
  | If you see a problem with using this for longterm, please comment.|
  =====================================================================

commit 1922756124ddd53846877416d92ba4a802bc658f upstream.

This fixes CVE-2011-1013.

Reported-by: Matthiew Herrb (OpenBSD X.org team)
Signed-off-by: Dave Airlie <[email protected]>
Signed-off-by: Paul Gortmaker <[email protected]>
---
 drivers/gpu/drm/drm_irq.c |    3 ++-
 include/drm/drmP.h        |    2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index a263b70..0ddd109 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -545,7 +545,8 @@ int drm_modeset_ctl(struct drm_device *dev, void *data,
                    struct drm_file *file_priv)
 {
        struct drm_modeset_ctl *modeset = data;
-       int crtc, ret = 0;
+       int ret = 0;
+       unsigned int crtc;
 
        /* If drm_vblank_init() hasn't been called yet, just no-op */
        if (!dev->num_crtcs)
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 2f3b3a0..b447a35 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1022,7 +1022,7 @@ struct drm_device {
        struct pci_controller *hose;
 #endif
        struct drm_sg_mem *sg;  /**< Scatter gather memory */
-       int num_crtcs;                  /**< Number of CRTCs on this device */
+       unsigned int num_crtcs;                  /**< Number of CRTCs on this 
device */
        void *dev_private;              /**< device private data */
        void *mm_private;
        struct address_space *dev_mapping;
-- 
1.7.4.4

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