linux-kernel - [PATCH] drm/i915/selftests: Fix return value check in live_breadcrumbs

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Message-ID: <20210529043327.2772051-1-chengzhihao1@huawei.com>
Date:   Sat, 29 May 2021 12:33:27 +0800
From:   Zhihao Cheng <chengzhihao1@...wei.com>
To:     <jani.nikula@...ux.intel.com>, <joonas.lahtinen@...ux.intel.com>,
        <rodrigo.vivi@...el.com>, <airlied@...ux.ie>, <daniel@...ll.ch>,
        <chris@...is-wilson.co.uk>, <tvrtko.ursulin@...el.com>
CC:     <intel-gfx@...ts.freedesktop.org>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
        <chengzhihao1@...wei.com>, <yukuai3@...wei.com>
Subject: [PATCH] drm/i915/selftests: Fix return value check in live_breadcrumbs_smoketest()

In case of error, the function live_context() returns ERR_PTR()
and never returns NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Fixes: 52c0fdb25c7c9 ("drm/i915: Replace global breadcrumbs ...")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Zhihao Cheng <chengzhihao1@...wei.com>
---
 drivers/gpu/drm/i915/selftests/i915_request.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/selftests/i915_request.c b/drivers/gpu/drm/i915/selftests/i915_request.c
index ee8e753d98ce..eae0abd614cb 100644
--- a/drivers/gpu/drm/i915/selftests/i915_request.c
+++ b/drivers/gpu/drm/i915/selftests/i915_request.c
@@ -1592,8 +1592,8 @@ static int live_breadcrumbs_smoketest(void *arg)
 
 	for (n = 0; n < smoke[0].ncontexts; n++) {
 		smoke[0].contexts[n] = live_context(i915, file);
-		if (!smoke[0].contexts[n]) {
-			ret = -ENOMEM;
+		if (IS_ERR(smoke[0].contexts[n])) {
+			ret = PTR_ERR(smoke[0].contexts[n]);
 			goto out_contexts;
 		}
 	}
-- 
2.25.4