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From: "Óscar Megía López" <megia.oscar@gmail.com>
To: Christian Koenig <christian.koenig@amd.com>,
	Huang Rui <ray.huang@amd.com>
Cc: "Óscar Megía López" <megia.oscar@gmail.com>,
	"Matthew Auld" <matthew.auld@intel.com>,
	"Matthew Brost" <matthew.brost@intel.com>,
	dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	linux-kernel-mentees@lists.linux.dev, stable@vger.kernel.org
Subject: [PATCH v5 6/6] ttm_pool_mgr_init() does not check return value
Date: Tue, 11 Aug 2026 21:42:21 +0200	[thread overview]
Message-ID: <20260811194224.121597-7-megia.oscar@gmail.com> (raw)
In-Reply-To: <20260811194224.121597-1-megia.oscar@gmail.com>

Bug: ttm_pool_mgr_init() does not check return value in
ttm_global_init().

Fix: Check the return value from ttm_pool_mgr_init() and propagate
the error.

Assisted-by: OpenCode:1.17.18-Big Pickle/DeepSeek V4 Flash
Assisted-by: claude.ai:Sonnet 5
Cc: <stable@vger.kernel.org> # 7.1.0
Fixes: 444e2a19d7fd ("ttm/pool: port to list_lru. (v2)")
Signed-off-by: Óscar Megía López <megia.oscar@gmail.com>
---
 drivers/gpu/drm/ttm/ttm_device.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c
index d3bfb9a696a7..896b766712d0 100644
--- a/drivers/gpu/drm/ttm/ttm_device.c
+++ b/drivers/gpu/drm/ttm/ttm_device.c
@@ -96,7 +96,9 @@ static int ttm_global_init(void)
 		>> PAGE_SHIFT;
 	num_dma32 = min(num_dma32, 2UL << (30 - PAGE_SHIFT));
 
-	ttm_pool_mgr_init(num_pages);
+	ret = ttm_pool_mgr_init(num_pages);
+	if (ret)
+		goto out;
 	ttm_tt_mgr_init(num_pages, num_dma32);
 
 	glob->dummy_read_page = alloc_page(__GFP_ZERO | GFP_DMA32 |
-- 
2.55.0


  parent reply	other threads:[~2026-08-11 19:42 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-11 19:42 [PATCH v5 0/6] Series from memory leak on qxl unbind Óscar Megía López
2026-08-11 19:42 ` [PATCH v5 1/6] Memory leak error in " Óscar Megía López
2026-08-12  8:50   ` Christian König
2026-08-11 19:42 ` [PATCH v5 2/6] list_lru_init() does not check return value Óscar Megía López
2026-08-11 19:42 ` [PATCH v5 3/6] ttm_pool_fini() does not destroy list lru Óscar Megía López
2026-08-11 19:42 ` [PATCH v5 4/6] ttm_pool_type_init() does not check return value Óscar Megía López
2026-08-11 19:42 ` [PATCH v5 5/6] ttm_pool_mgr_fini() does not destroy the list_lru Óscar Megía López
2026-08-11 19:42 ` Óscar Megía López [this message]
2026-08-20 14:55   ` [PATCH v5 6/6] ttm_pool_mgr_init() does not check return value Markus Elfring

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