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Tue, 28 Feb 2023 15:02:20 -0600 From: Tanmay Shah To: , , , , , CC: , , , Tanmay Shah Subject: [PATCH v4 1/5] mailbox: zynqmp: fix counts of child nodes Date: Tue, 28 Feb 2023 13:02:12 -0800 Message-ID: <20230228210216.447373-2-tanmay.shah@amd.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20230228210216.447373-1-tanmay.shah@amd.com> References: <20230228210216.447373-1-tanmay.shah@amd.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DM6NAM11FT018:EE_|MW4PR12MB7484:EE_ X-MS-Office365-Filtering-Correlation-Id: f093526b-6881-4b89-e823-08db19cf1791 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230025)(4636009)(39860400002)(376002)(136003)(346002)(396003)(451199018)(36840700001)(46966006)(40470700004)(36756003)(86362001)(70206006)(5660300002)(8676002)(4326008)(15650500001)(41300700001)(8936002)(40480700001)(2906002)(44832011)(4744005)(36860700001)(81166007)(82740400003)(356005)(6666004)(6636002)(478600001)(54906003)(316002)(70586007)(82310400005)(83380400001)(47076005)(110136005)(26005)(186003)(426003)(2616005)(40460700003)(336012)(1076003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Feb 2023 21:02:24.6638 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: f093526b-6881-4b89-e823-08db19cf1791 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM11FT018.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW4PR12MB7484 Precedence: bulk List-ID: X-Mailing-List: linux-remoteproc@vger.kernel.org If child mailbox node status is disabled it causes crash in interrupt handler. Fix this by assigning only available child node during driver probe. Signed-off-by: Tanmay Shah --- drivers/mailbox/zynqmp-ipi-mailbox.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-ipi-mailbox.c index 12e004ff1a14..e287ed7a92ce 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -634,7 +634,7 @@ static int zynqmp_ipi_probe(struct platform_device *pdev) struct zynqmp_ipi_mbox *mbox; int num_mboxes, ret = -EINVAL; - num_mboxes = of_get_child_count(np); + num_mboxes = of_get_available_child_count(np); pdata = devm_kzalloc(dev, sizeof(*pdata) + (num_mboxes * sizeof(*mbox)), GFP_KERNEL); if (!pdata)