linux-kernel - [PATCH] mmc: tmio: Use common error handling code in tmio_mmc_host

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <7fdea92c-2ca7-8911-28da-4388103e1b04@users.sourceforge.net>
Date:   Fri, 27 Oct 2017 19:17:24 +0200
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-mmc@...r.kernel.org, Ulf Hansson <ulf.hansson@...aro.org>,
        Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH] mmc: tmio: Use common error handling code in
 tmio_mmc_host_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Fri, 27 Oct 2017 19:09:17 +0200

* Add a jump target so that a bit of exception handling can be better
  reused at the end of this function.

* Adjust condition checks.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 drivers/mmc/host/tmio_mmc_core.c | 17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
index a7293e186e03..2e85d4048cec 100644
--- a/drivers/mmc/host/tmio_mmc_core.c
+++ b/drivers/mmc/host/tmio_mmc_core.c
@@ -1286,23 +1286,24 @@ int tmio_mmc_host_probe(struct tmio_mmc_host *_host,
 	pm_runtime_enable(&pdev->dev);
 
 	ret = mmc_add_host(mmc);
-	if (ret < 0) {
-		tmio_mmc_host_remove(_host);
-		return ret;
-	}
+	if (ret)
+		goto remove_host;
 
 	dev_pm_qos_expose_latency_limit(&pdev->dev, 100);
 
 	if (pdata->flags & TMIO_MMC_USE_GPIO_CD) {
 		ret = mmc_gpio_request_cd(mmc, pdata->cd_gpio, 0);
-		if (ret < 0) {
-			tmio_mmc_host_remove(_host);
-			return ret;
-		}
+		if (ret)
+			goto remove_host;
+
 		mmc_gpiod_request_cd_irq(mmc);
 	}
 
 	return 0;
+
+remove_host:
+	tmio_mmc_host_remove(_host);
+	return ret;
 }
 EXPORT_SYMBOL_GPL(tmio_mmc_host_probe);
 
-- 
2.14.3