[PATCH] drm/i915/guc: Assert ctch->vma is allocated

[PATCH] drm/i915/guc: Assert ctch->vma is allocated

[Michal Wajdeczko]

Silence smatch by demonstrating that ctch->vma is allocated
following a successful chch_init()

drivers/gpu/drm/i915/intel_guc_ct.c:204 ctch_open() error:
 we previously assumed 'ctch->vma' could be null (see line 197)

Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
---
 drivers/gpu/drm/i915/intel_guc_ct.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/intel_guc_ct.c b/drivers/gpu/drm/i915/intel_guc_ct.c
index c4cbec1..24ad557 100644
--- a/drivers/gpu/drm/i915/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/intel_guc_ct.c
@@ -198,6 +198,7 @@ static int ctch_open(struct intel_guc *guc,
 		err = ctch_init(guc, ctch);
 		if (unlikely(err))
 			goto err_out;
+		GEM_BUG_ON(!ctch->vma);
 	}
 
 	/* vma should be already allocated and map'ed */
-- 
1.9.1

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✗ Fi.CI.BAT: failure for drm/i915/guc: Assert ctch->vma is allocated

[Patchwork]

== Series Details ==

Series: drm/i915/guc: Assert ctch->vma is allocated
URL   : https://patchwork.freedesktop.org/series/33257/
State : failure

== Summary ==

Series 33257v1 drm/i915/guc: Assert ctch->vma is allocated
https://patchwork.freedesktop.org/api/1.0/series/33257/revisions/1/mbox/

Test gem_exec_suspend:
        Subgroup basic-s3:
                pass       -> DMESG-FAIL (fi-kbl-7560u) fdo#103039
        Subgroup basic-s4-devices:
                pass       -> DMESG-FAIL (fi-kbl-7560u) fdo#102846 +1
Test gem_flink_basic:
        Subgroup bad-flink:
                pass       -> DMESG-WARN (fi-kbl-7560u) fdo#103049 +4
Test kms_busy:
        Subgroup basic-flip-a:
                pass       -> INCOMPLETE (fi-glk-dsi)

fdo#103039 https://bugs.freedesktop.org/show_bug.cgi?id=103039
fdo#102846 https://bugs.freedesktop.org/show_bug.cgi?id=102846
fdo#103049 https://bugs.freedesktop.org/show_bug.cgi?id=103049

fi-bdw-5557u     total:289  pass:268  dwarn:0   dfail:0   fail:0   skip:21  time:446s
fi-bdw-gvtdvm    total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:456s
fi-blb-e6850     total:289  pass:223  dwarn:1   dfail:0   fail:0   skip:65  time:381s
fi-bsw-n3050     total:289  pass:243  dwarn:0   dfail:0   fail:0   skip:46  time:542s
fi-bwr-2160      total:289  pass:183  dwarn:0   dfail:0   fail:0   skip:106 time:278s
fi-bxt-dsi       total:289  pass:259  dwarn:0   dfail:0   fail:0   skip:30  time:510s
fi-bxt-j4205     total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:510s
fi-byt-j1900     total:289  pass:253  dwarn:1   dfail:0   fail:0   skip:35  time:508s
fi-byt-n2820     total:289  pass:249  dwarn:1   dfail:0   fail:0   skip:39  time:490s
fi-cfl-s         total:289  pass:254  dwarn:3   dfail:0   fail:0   skip:32  time:559s
fi-cnl-y         total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:609s
fi-elk-e7500     total:289  pass:229  dwarn:0   dfail:0   fail:0   skip:60  time:422s
fi-gdg-551       total:289  pass:178  dwarn:1   dfail:0   fail:1   skip:109 time:266s
fi-glk-1         total:289  pass:261  dwarn:0   dfail:0   fail:0   skip:28  time:579s
fi-glk-dsi       total:206  pass:183  dwarn:0   dfail:0   fail:0   skip:22 
fi-hsw-4770      total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:430s
fi-hsw-4770r     total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:432s
fi-ilk-650       total:289  pass:228  dwarn:0   dfail:0   fail:0   skip:61  time:427s
fi-ivb-3520m     total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:501s
fi-ivb-3770      total:289  pass:260  dwarn:0   dfail:0   fail:0   skip:29  time:460s
fi-kbl-7560u     total:289  pass:105  dwarn:5   dfail:2   fail:0   skip:12 
fi-kbl-7567u     total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:483s
fi-kbl-r         total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:585s
fi-pnv-d510      total:289  pass:222  dwarn:1   dfail:0   fail:0   skip:66  time:566s
fi-skl-6260u     total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:453s
fi-skl-6600u     total:289  pass:262  dwarn:0   dfail:0   fail:0   skip:27  time:599s
fi-skl-6700hq    total:289  pass:263  dwarn:0   dfail:0   fail:0   skip:26  time:654s
fi-skl-6700k     total:289  pass:265  dwarn:0   dfail:0   fail:0   skip:24  time:519s
fi-skl-6770hq    total:289  pass:269  dwarn:0   dfail:0   fail:0   skip:20  time:503s
fi-skl-gvtdvm    total:289  pass:266  dwarn:0   dfail:0   fail:0   skip:23  time:459s
fi-snb-2520m     total:289  pass:250  dwarn:0   dfail:0   fail:0   skip:39  time:570s
fi-snb-2600      total:289  pass:249  dwarn:0   dfail:0   fail:0   skip:40  time:418s

9cc9686b44e192d2561a513f84d5ac95518cad73 drm-tip: 2017y-11m-06d-10h-10m-17s UTC integration manifest
334c3f1ca500 drm/i915/guc: Assert ctch->vma is allocated

== Logs ==

For more details see: https://intel-gfx-ci.01.org/tree/drm-tip/Patchwork_6975/
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