Messages in this thread Patch in this message | | | From | Andrzej Hajda <> | Subject | [PATCH 03/38] drm/i915: fix handling gen8_emit_flush_coherentl3_wa result | Date | Mon, 21 Sep 2015 15:33:35 +0200 |
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The function can return negative value.
The problem has been detected using proposed semantic patch scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci [1].
[1]: http://permalink.gmane.org/gmane.linux.kernel/2038576
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com> --- drivers/gpu/drm/i915/intel_lrc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c index fe06accb0..ff9a481 100644 --- a/drivers/gpu/drm/i915/intel_lrc.c +++ b/drivers/gpu/drm/i915/intel_lrc.c @@ -1254,9 +1254,10 @@ static int gen8_init_indirectctx_bb(struct intel_engine_cs *ring, /* WaFlushCoherentL3CacheLinesAtContextSwitch:bdw */ if (IS_BROADWELL(ring->dev)) { - index = gen8_emit_flush_coherentl3_wa(ring, batch, index); - if (index < 0) - return index; + int rc = gen8_emit_flush_coherentl3_wa(ring, batch, index); + if (rc < 0) + return rc; + index = rc; } /* WaClearSlmSpaceAtContextSwitch:bdw,chv */ -- 1.9.1
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