From 6d3dec0f75d3b02180eab5ccfbfd4b42c3e4af6d Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ilpo=20J=C3=A4rvinen?= Date: Wed, 14 Dec 2022 16:49:52 +0200 Subject: [PATCH] fpga: m10bmc-sec: Fix probe rollback MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit commit 60ce26d10e5850f33cc76fce52f5377045e75a15 upstream. Handle probe error rollbacks properly to avoid leaks. Fixes: 78e2f1b87c41 ("fpga: m10bmc-sec: add max10 secure update functions") Reviewed-by: Matthew Gerlach Reviewed-by: Russ Weight Reviewed-by: Marco Pagani Signed-off-by: Ilpo Järvinen Cc: stable@vger.kernel.org Acked-by: Xu Yilun Link: https://lore.kernel.org/r/20221214144952.8392-1-ilpo.jarvinen@linux.intel.com Signed-off-by: Xu Yilun Signed-off-by: Greg Kroah-Hartman --- drivers/fpga/intel-m10-bmc-sec-update.c | 17 ++++++++++++----- 1 file changed, 12 insertions(+), 5 deletions(-) diff --git a/drivers/fpga/intel-m10-bmc-sec-update.c b/drivers/fpga/intel-m10-bmc-sec-update.c index 79d48852825ef..03f1bd81c434d 100644 --- a/drivers/fpga/intel-m10-bmc-sec-update.c +++ b/drivers/fpga/intel-m10-bmc-sec-update.c @@ -574,20 +574,27 @@ static int m10bmc_sec_probe(struct platform_device *pdev) len = scnprintf(buf, SEC_UPDATE_LEN_MAX, "secure-update%d", sec->fw_name_id); sec->fw_name = kmemdup_nul(buf, len, GFP_KERNEL); - if (!sec->fw_name) - return -ENOMEM; + if (!sec->fw_name) { + ret = -ENOMEM; + goto fw_name_fail; + } fwl = firmware_upload_register(THIS_MODULE, sec->dev, sec->fw_name, &m10bmc_ops, sec); if (IS_ERR(fwl)) { dev_err(sec->dev, "Firmware Upload driver failed to start\n"); - kfree(sec->fw_name); - xa_erase(&fw_upload_xa, sec->fw_name_id); - return PTR_ERR(fwl); + ret = PTR_ERR(fwl); + goto fw_uploader_fail; } sec->fwl = fwl; return 0; + +fw_uploader_fail: + kfree(sec->fw_name); +fw_name_fail: + xa_erase(&fw_upload_xa, sec->fw_name_id); + return ret; } static int m10bmc_sec_remove(struct platform_device *pdev) -- 2.39.5