From: Arnd Bergmann <arnd@arndb.de>
To: "Harry Wentland" <harry.wentland@amd.com>,
"Leo Li" <sunpeng.li@amd.com>,
"Alex Deucher" <alexander.deucher@amd.com>,
"Christian König" <christian.koenig@amd.com>,
"David (ChunMing) Zhou" <David1.Zhou@amd.com>,
"David Airlie" <airlied@linux.ie>,
"Daniel Vetter" <daniel@ffwll.ch>
Cc: Charlene Liu <charlene.liu@amd.com>,
Arnd Bergmann <arnd@arndb.de>,
linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
Nikola Cornij <nikola.cornij@amd.com>,
clang-built-linux@googlegroups.com,
Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>,
dri-devel@lists.freedesktop.org, Jun Lei <Jun.Lei@amd.com>,
Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Subject: [PATCH] drm/amd/display: return 'NULL' instead of 'false' from dcn20_acquire_idle_pipe_for_layer
Date: Fri, 12 Jul 2019 11:39:52 +0200 [thread overview]
Message-ID: <20190712094009.1535662-1-arnd@arndb.de> (raw)
clang complains that 'false' is a not a pointer:
drivers/gpu/drm/amd/amdgpu/../display/dc/dcn20/dcn20_resource.c:2428:10: error: expression which evaluates to zero treated as a null pointer constant of type 'struct pipe_ctx *' [-Werror,-Wnon-literal-null-conversion]
return false;
Changing it to 'NULL' looks like the right thing that will shut up
the warning and make it easier to read, while not changing behavior.
Fixes: 7ed4e6352c16 ("drm/amd/display: Add DCN2 HW Sequencer and Resource")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 70ac8a95d2db..66aa414ad38f 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2425,7 +2425,7 @@ struct pipe_ctx *dcn20_acquire_idle_pipe_for_layer(
ASSERT(0);
if (!idle_pipe)
- return false;
+ return NULL;
idle_pipe->stream = head_pipe->stream;
idle_pipe->stream_res.tg = head_pipe->stream_res.tg;
--
2.20.0
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next reply other threads:[~2019-07-12 9:39 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-07-12 9:39 Arnd Bergmann [this message]
2019-07-12 17:56 ` [PATCH] drm/amd/display: return 'NULL' instead of 'false' from dcn20_acquire_idle_pipe_for_layer Alex Deucher
2019-07-12 17:57 ` Nathan Chancellor
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