From 661df0415e6f6bfaade501fb94cc324fa44f29b4 Mon Sep 17 00:00:00 2001 From: Mika Kuoppala Date: Tue, 12 Nov 2013 19:49:35 +0200 Subject: [PATCH] drm/i915: check i915_get_reset_stats_ioctl args Insist that flags and pad fields are zero, so that we can safely extend the interface in future. Testcase: igt/gem_reset_stats/params Suggested-by: Daniel Vetter Signed-off-by: Mika Kuoppala Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_uncore.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c index 21cf951..a881906 100644 --- a/drivers/gpu/drm/i915/intel_uncore.c +++ b/drivers/gpu/drm/i915/intel_uncore.c @@ -641,6 +641,9 @@ int i915_get_reset_stats_ioctl(struct drm_device *dev, struct i915_ctx_hang_stats *hs; int ret; + if (args->flags || args->pad) + return -EINVAL; + if (args->ctx_id == DEFAULT_CONTEXT_ID && !capable(CAP_SYS_ADMIN)) return -EPERM; -- 2.7.4