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From: Dan Carpenter <dan.carpenter@linaro.org>
To: Bob Zhou <bob.zhou@amd.com>
Cc: "Alex Deucher" <alexander.deucher@amd.com>,
	"Christian König" <christian.koenig@amd.com>,
	"Pan, Xinhui" <Xinhui.Pan@amd.com>,
	"David Airlie" <airlied@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Felix Kuehling" <Felix.Kuehling@amd.com>,
	"Hawking Zhang" <Hawking.Zhang@amd.com>,
	"Guchun Chen" <guchun.chen@amd.com>, "Le Ma" <le.ma@amd.com>,
	"Lijo Lazar" <lijo.lazar@amd.com>,
	"Shashank Sharma" <shashank.sharma@amd.com>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH] drm/amdgpu: Fix signedness bug in sdma_v4_0_process_trap_irq()
Date: Sun, 28 Apr 2024 15:57:00 +0300	[thread overview]
Message-ID: <afb229a9-3f18-44cb-b305-5fbb2e1b4ee3@moroto.mountain> (raw)

The "instance" variable needs to be signed for the error handling to work.

Fixes: b34ddc71267a ("drm/amdgpu: add error handle to avoid out-of-bounds")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 101038395c3b..772604feb6ac 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -2017,7 +2017,7 @@ static int sdma_v4_0_process_trap_irq(struct amdgpu_device *adev,
 				      struct amdgpu_irq_src *source,
 				      struct amdgpu_iv_entry *entry)
 {
-	uint32_t instance;
+	int instance;
 
 	DRM_DEBUG("IH: SDMA trap\n");
 	instance = sdma_v4_0_irq_id_to_seq(entry->client_id);
-- 
2.43.0


             reply	other threads:[~2024-04-28 12:57 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-28 12:57 Dan Carpenter [this message]
2024-04-29  1:26 ` Zhou, Bob
2024-04-29 16:14   ` Alex Deucher

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