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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	stable@vger.kernel.org,
	"Christian König" <christian.koenig@amd.com>,
	"Erhard F." <erhard_f@mailbox.org>,
	"Huang Rui" <ray.huang@amd.com>
Subject: [PATCH 5.10 12/16] Revert "drm/ttm: fix memleak in ttm_transfered_destroy"
Date: Thu,  4 Nov 2021 15:12:51 +0100	[thread overview]
Message-ID: <20211104141159.995038999@linuxfoundation.org> (raw)
In-Reply-To: <20211104141159.561284732@linuxfoundation.org>

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

This reverts commit c21b4002214c1c7e7b627b9b53375612f7aab6db which is
commit 0db55f9a1bafbe3dac750ea669de9134922389b5 upstream.

Seems that the older kernels can not handle this fix because, to quote
Christian:
	The problem is this memory leak could potentially happen with
	5.10 as wel, just much much much less likely.

	But my guess is that 5.10 is so buggy that when the leak does
	NOT happen we double free and obviously causing a crash.

So it needs to be reverted.

Link: https://lore.kernel.org/r/1a1cc125-9314-f569-a6c4-40fc4509a377@amd.com
Cc: Christian König <christian.koenig@amd.com>
Cc: Erhard F. <erhard_f@mailbox.org>
Cc: Erhard F. <erhard_f@mailbox.org>
Cc: Huang Rui <ray.huang@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/ttm/ttm_bo_util.c |    1 -
 1 file changed, 1 deletion(-)

--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -322,7 +322,6 @@ static void ttm_transfered_destroy(struc
 	struct ttm_transfer_obj *fbo;
 
 	fbo = container_of(bo, struct ttm_transfer_obj, base);
-	dma_resv_fini(&fbo->base.base._resv);
 	ttm_bo_put(fbo->bo);
 	kfree(fbo);
 }



  parent reply	other threads:[~2021-11-04 14:16 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-04 14:12 [PATCH 5.10 00/16] 5.10.78-rc1 review Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 01/16] scsi: core: Put LLD module refcnt after SCSI device is released Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 02/16] Revert "io_uring: reinforce cancel on flush during exit" Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 03/16] sfc: Fix reading non-legacy supported link modes Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 04/16] vrf: Revert "Reset skb conntrack connection..." Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 05/16] net: ethernet: microchip: lan743x: Fix skb allocation failure Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 06/16] mm: hwpoison: remove the unnecessary THP check Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 07/16] mm: filemap: check if THP has hwpoisoned subpage for PMD page fault Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 08/16] media: firewire: firedtv-avc: fix a buffer overflow in avc_ca_pmt() Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 09/16] Revert "xhci: Set HCD flag to defer primary roothub registration" Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 10/16] Revert "usb: core: hcd: Add support for deferring " Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 11/16] mm: khugepaged: skip huge page collapse for special files Greg Kroah-Hartman
2021-11-04 14:12 ` Greg Kroah-Hartman [this message]
2021-11-04 14:12 ` [PATCH 5.10 13/16] ARM: 9120/1: Revert "amba: make use of -1 IRQs warn" Greg Kroah-Hartman
2021-11-05 13:32   ` Pavel Machek
2021-11-04 14:12 ` [PATCH 5.10 14/16] Revert "wcn36xx: Disable bmps when encryption is disabled" Greg Kroah-Hartman
2021-11-05 13:18   ` Pavel Machek
2021-11-05 14:06     ` Bryan O'Donoghue
2021-11-04 14:12 ` [PATCH 5.10 15/16] ALSA: usb-audio: Add Schiit Hel device to mixer map quirk table Greg Kroah-Hartman
2021-11-04 14:12 ` [PATCH 5.10 16/16] ALSA: usb-audio: Add Audient iD14 " Greg Kroah-Hartman
2021-11-04 15:53 ` [PATCH 5.10 00/16] 5.10.78-rc1 review Daniel Díaz
2021-11-04 16:20   ` Greg Kroah-Hartman
2021-11-04 16:45     ` Daniel Díaz
2021-11-04 16:46     ` Guenter Roeck
2021-11-04 16:52       ` Greg Kroah-Hartman
2021-11-04 18:38 ` Fox Chen
2021-11-04 23:48 ` Shuah Khan

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