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From: Nathan Chancellor <nathan@kernel.org>
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>,
	"Pan, Xinhui" <Xinhui.Pan@amd.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, llvm@lists.linux.dev,
	Nathan Chancellor <nathan@kernel.org>
Subject: [PATCH] drm/amd: Return NULL instead of false in dcn201_acquire_idle_pipe_for_layer()
Date: Thu, 30 Sep 2021 09:23:03 -0700	[thread overview]
Message-ID: <20210930162302.2344542-1-nathan@kernel.org> (raw)

Clang warns:

drivers/gpu/drm/amd/amdgpu/../display/dc/dcn201/dcn201_resource.c:1017:10: error: expression which evaluates to zero treated as a null pointer constant of type 'struct pipe_ctx *' [-Werror,-Wnon-literal-null-conversion]
                return false;
                       ^~~~~
1 error generated.

Use NULL instead of false since the function is returning a pointer
rather than a boolean.

Fixes: ff7e396f822f ("drm/amd/display: add cyan_skillfish display support")
Link: https://github.com/ClangBuiltLinux/linux/issues/1470
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
index aec276e1db65..8523a048e6f6 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn201/dcn201_resource.c
@@ -1014,7 +1014,7 @@ static struct pipe_ctx *dcn201_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;

base-commit: b47b99e30cca8906753c83205e8c6179045dd725
-- 
2.33.0.591.gddb1055343


             reply	other threads:[~2021-09-30 16:23 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-30 16:23 Nathan Chancellor [this message]
2021-09-30 17:09 ` [PATCH] drm/amd: Return NULL instead of false in dcn201_acquire_idle_pipe_for_layer() Alex Deucher
2021-09-30 17:22   ` Nick Desaulniers
2021-09-30 17:22     ` Nick Desaulniers
2021-09-30 17:22     ` Nick Desaulniers
2021-09-30 17:59     ` Alex Deucher
2021-09-30 17:59       ` Alex Deucher
2021-09-30 17:59       ` Alex Deucher

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