From: Chris Wilson Date: Tue, 14 Feb 2017 14:35:09 +0000 (+0000) Subject: drm/i915: Silence compiler warning for seltests/i915_gem_coherency X-Git-Tag: v4.12-rc1~116^2~34^2~230 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b8f2169db98eba2c5009cc67a448dc48a0fd4c48;p=karo-tx-linux.git drm/i915: Silence compiler warning for seltests/i915_gem_coherency In general, the compiler should not be able to detect if we do any passes through the test loops: In file included from drivers/gpu/drm/i915/i915_gem.c:5029: drivers/gpu/drm/i915/selftests/i915_gem_coherency.c: In function 'igt_gem_coherency': drivers/gpu/drm/i915/selftests/i915_gem_coherency.c:274: error: 'err' may be used uninitialized in this function Reported-by: kbuild test robot Signed-off-by: Chris Wilson Link: http://patchwork.freedesktop.org/patch/msgid/20170214143509.15719-1-chris@chris-wilson.co.uk Reviewed-by: Matthew Auld --- diff --git a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c index ad92c60290f1..f08d0179b3df 100644 --- a/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c +++ b/drivers/gpu/drm/i915/selftests/i915_gem_coherency.c @@ -272,7 +272,7 @@ static int igt_gem_coherency(void *arg) struct drm_i915_gem_object *obj; unsigned long count, n; u32 *offsets, *values; - int err; + int err = 0; /* We repeatedly write, overwrite and read from a sequence of * cachelines in order to try and detect incoherency (unflushed writes