[Intel-gfx] [PATCH 1/2] drm/i915/perf: Initialise err to 0 before looping over ce->engines

[Chris Wilson]

Smatch warning that the loop may be empty causing us to check err before
it had been set. Ensure that it is initialised to 0, just in case.

Fixes: a9877da2d629 ("drm/i915/oa: Reconfigure contexts on the fly")
Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
Cc: Lionel Landwerlin <lionel.g.landwerlin at intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin at intel.com>
---
 drivers/gpu/drm/i915/i915_perf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index 79be9d8ea628..a294c0f53625 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1875,6 +1875,7 @@ static int gen8_configure_all_contexts(struct drm_i915_private *i915,
 		if (ctx == i915->kernel_context)
 			continue;
 
+		err = 0;
 		for_each_gem_engine(ce,
 				    i915_gem_context_lock_engines(ctx),
 				    it) {
-- 
2.22.0