From nobody Mon Jun 8 06:36:11 2026 Received: from mail-pf1-f179.google.com (mail-pf1-f179.google.com [209.85.210.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 116FC2853EE for ; Sat, 6 Jun 2026 04:06:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.179 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780718811; cv=none; b=IBX3Npp63ByqEu3gjVBXdy+h4Og3ErKoEUg4/csyIPmZES3HlIgUm10pcgo3NG5TbDvJBsBdKnBtP0n//XzXrfxERkgaRueRtT6PobY9dsEznNpX7w1Rb6VVSh0yFmJJtdnzbmxrfpfQ781lKi/N6OV2oaKvBtvGYg110SuVm7A= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780718811; c=relaxed/simple; bh=Wwc/btTfzA7l/jcXEHUEYbKRnHwUM7rrn89qeAjFt2M=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=opggQsMmX7OTreE4P1SeosdCgoLG6T6uHAA3lz6vYpMZRL9jBZQRQlL4f4dPRMjIBUDD/ak4izxI0nIetX0VOBlRYRV1rPCbrweb+7x71gJmJ7C+IXPcNSyBwZOe/40IxIBIkEggL+Lcq7AHqdr/0JzDU8Rrv1CoNrvydsWKRXs= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=AgPmD8NH; arc=none smtp.client-ip=209.85.210.179 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="AgPmD8NH" Received: by mail-pf1-f179.google.com with SMTP id d2e1a72fcca58-8423efad617so1430223b3a.0 for ; Fri, 05 Jun 2026 21:06:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1780718809; x=1781323609; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=bkFR8PD5hTsVehXEUiC3ZjzrwKQUAHChOG9ZKsTB6rM=; b=AgPmD8NHm5YeTXBdlus3ahsacJgfKDFAxXDjKqtPNrh02/GYaRisx3WBrICyc9dK3M OYrw6zs9M7cn1zHWqSPNFm8XtO/Vp3Lx64/E8wtkLxecGBBnCP//zG0D0oc653IcWPLf TSj9urGm+l4oC23kcACccytQkEWy3RG9cgTY2mWmFOnFCB7ydefQLKDxqJ1j5Q2a6J6T ukDzQqX2LpDCeYdjZKUNqsA38SovIsf/OQT+hb2PbLVKyLX92li8YJs16HrtQV3ejDwx DAfzmr3i4wsdiUHaWf8INXi/IMVNI5Bc3h4OuKNApl/9yCrW9P4wPT6szL3aTHRYS3DY mmAQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1780718809; x=1781323609; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=bkFR8PD5hTsVehXEUiC3ZjzrwKQUAHChOG9ZKsTB6rM=; b=dDt3cmMVohzIUUsEf1IbhOEC/rQyJqrmQzgh3x9uxKkk1C1oMT7SQvaoJHp1EyRj/8 XzhVlxbbtnKxL8NIYqEezZuHQJqgFaKWWjPkxOgGE8K8LMNrZPa8BJcqBOWF3CBUH5Jl yYz/98V/hMvpbmQAZhQ7xlSEPVdRzEItGfDJrKXperYrx4faiXwVokIl73mdxD5svVm5 3zxz0wwUCiQ4qTvtnKJKvTfAkoMwhkiXnCFllohpCCkwbSGRl1bigFzK12sdLnPFmnp1 +KS0EWilZ0QY6pvxFGLWYYiUJG9s11PqWnxJpvQo6GQyRBQ524ZuSGqmINCel7QLUZRG 4+Xg== X-Forwarded-Encrypted: i=1; AFNElJ+L/zt+rfiCa/Bg1iQ/NCF5srWLQwsuaM5dxb4PgHsY42ify+YA1oqktoTkvPMkXuQEfNtDG+XHdAtIpVs=@vger.kernel.org X-Gm-Message-State: AOJu0Ywl3fdTOCWJ+L+uac0W4Mmuq639NDDorlGgfXJIkQaxU8gVXIk4 aPitilGHa0Y/ISH6SL8IH+0uo4/GnANRH7g+b7B/z6vo0qUZzZk1PitD X-Gm-Gg: Acq92OGNj04Bxcx06Oyb7PTq5pIZ5lUyI/CSjddTmIuomWtHd6Y59pX9H/BEHY6zywS H9NAkhD5LXb1PlVByeqQd4kx24L7QZxikG0CLYHN13Aj9tXGi9WQ3TJ0OpIX8jsSy8AmmNfixqF HaHDm7Pe63J8DuSmApdXTtaWO6iHGJwlfM4FU2g8CeOwUTNE8WFmE2dMyX+v22OD37T7TT4YIDp 9PebAciYDjCUC17xFUedGGAOf4t7TiyHhTxxm4DKgIvh3xxG7OUtQvWDum9feRfduOUgEJdF3xw Ol9p1vbF82JvIprwUFdFWbI5Ik4ygdJZffCuYFRp8vtq65Ywa9/KIqjpZr4iAQXqSqgpmv/tciQ iNBV7Fzggwsu1QoirtXBgXFOOsGHogX7F0qaWaIqGOw44HHjD654/1RYiM3OmutYjetSDC9pJAN KtDCRVyRuPV1b6b111U7b1Z+ZGn0GsH2ER4Y5c6OaL/dYI8bRpjzHn9w== X-Received: by 2002:a05:6a00:194a:b0:842:4f20:53ff with SMTP id d2e1a72fcca58-842b0fd16bdmr7035088b3a.42.1780718809337; Fri, 05 Jun 2026 21:06:49 -0700 (PDT) Received: from haichao.tail057a43.ts.net ([2001:da8:e000:1206:967f:7ce4:ec98:f08b]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-84282372a16sm13112774b3a.18.2026.06.05.21.06.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Jun 2026 21:06:49 -0700 (PDT) From: Ruoyu Wang To: Selvin Xavier Cc: Kalesh AP , Jason Gunthorpe , Leon Romanovsky , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org, Ruoyu Wang Subject: [PATCH] RDMA/bnxt_re: check debugfs parameter allocation Date: Sat, 6 Jun 2026 12:06:44 +0800 Message-ID: <20260606040644.13-1-ruoyuw560@gmail.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" bnxt_re_debugfs_add_pdev() allocates per-file private data for the CC configuration debugfs entries. The loop that initializes those entries uses rdev->cc_config_params immediately, so allocation failure would lead to NULL pointer dereferences while setting up debugfs. Debugfs is best-effort. If the CC configuration private data cannot be allocated, skip those entries and continue with the independent CQ coalescing debugfs setup. Signed-off-by: Ruoyu Wang --- drivers/infiniband/hw/bnxt_re/debugfs.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/infiniband/hw/bnxt_re/debugfs.c b/drivers/infiniband/h= w/bnxt_re/debugfs.c index 5fed2cf66be30..b1d6a8b32cc48 100644 --- a/drivers/infiniband/hw/bnxt_re/debugfs.c +++ b/drivers/infiniband/hw/bnxt_re/debugfs.c @@ -498,6 +498,8 @@ void bnxt_re_debugfs_add_pdev(struct bnxt_re_dev *rdev) bnxt_re_debugfs_add_info(rdev); =20 rdev->cc_config_params =3D kzalloc_obj(*cc_params); + if (!rdev->cc_config_params) + goto init_cq_coal; =20 for (i =3D 0; i < BNXT_RE_CC_PARAM_GEN0; i++) { struct bnxt_re_cc_param *tmp_params =3D &rdev->cc_config_params->gen0_pa= rms[i]; @@ -510,6 +512,7 @@ void bnxt_re_debugfs_add_pdev(struct bnxt_re_dev *rdev) &bnxt_re_cc_config_ops); } =20 +init_cq_coal: bnxt_re_init_cq_coal_debugfs(rdev); } =20 --=20 2.34.1