Merge commit '900cfa46191a7d87cf1891924cb90499287fd235'; branches 'timers/nohz',...

[cascardo/linux.git] / drivers / char / drm / drm_drv.c

diff --git a/drivers/char/drm/drm_drv.c b/drivers/char/drm/drm_drv.c
index fc54140..5641387 100644 (file)
--- a/drivers/char/drm/drm_drv.c
+++ b/drivers/char/drm/drm_drv.c
@@ -470,17 +470,18 @@ int drm_ioctl(struct inode *inode, struct file *filp,
        if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END) &&
            (nr < DRM_COMMAND_BASE + dev->driver->num_ioctls))
                ioctl = &dev->driver->ioctls[nr - DRM_COMMAND_BASE];
-       else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE))
+       else if ((nr >= DRM_COMMAND_END) || (nr < DRM_COMMAND_BASE)) {
                ioctl = &drm_ioctls[nr];
-       else
+               cmd = ioctl->cmd;
+       } else
                goto err_i1;
 
+       /* Do not trust userspace, use our own definition */
        func = ioctl->func;
        /* is there a local override? */
        if ((nr == DRM_IOCTL_NR(DRM_IOCTL_DMA)) && dev->driver->dma_ioctl)
                func = dev->driver->dma_ioctl;
 
-
        if (!func) {
                DRM_DEBUG("no function\n");
                retcode = -EINVAL;