From: "Gustavo A. R. Silva" <gustavo@embeddedor.com>
Date: Tue, 24 Apr 2018 08:15:45 -0500
Subject: drm/i915/selftests: Fix uninitialized variable
Git-commit: a3997159133d56e444f0c0f56ab1ae59863912a8
Patch-mainline: v4.18-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

There is a potential execution path in which variable err is
returned without being properly initialized previously.

Fix this by initializing variable err to 0.

Addresses-Coverity-ID: 1468362 ("Uninitialized scalar variable")
Fixes: f4ecfbfc32ed ("drm/i915: Check whitelist registers across resets")
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20180424131545.GA4053@embeddedor.com

Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/i915/selftests/intel_workarounds.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/selftests/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/selftests/intel_workarounds.c
@@ -239,7 +239,7 @@ static int live_reset_whitelist(void *ar
 	struct intel_engine_cs *engine = i915->engine[RCS];
 	struct i915_gpu_error *error = &i915->gpu_error;
 	struct whitelist w;
-	int err;
+	int err = 0;
 
 	/* If we reset the gpu, we should not lose the RING_NONPRIV */