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-rw-r--r--drivers/gpu/drm/drm_drv.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 90288ec7c28..3644c94c0a1 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -477,7 +477,9 @@ long drm_ioctl(struct file *filp,
retcode = -EFAULT;
goto err_i1;
}
- }
+ } else
+ memset(kdata, 0, _IOC_SIZE(cmd));
+
if (ioctl->flags & DRM_UNLOCKED)
retcode = func(dev, kdata, file_priv);
else {