linux-kernel - [PATCH v2] spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash

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: <tencent_71FC162D589E4788C2152AAC84CD8D5C6D06@qq.com>
Date:   Sat, 22 Jul 2023 23:49:09 +0800
From:   Zhang Shurong <zhang_shurong@...mail.com>
To:     thierry.reding@...il.com
Cc:     ldewangan@...dia.com, broonie@...nel.org, jonathanh@...dia.com,
        p.zabel@...gutronix.de, linux-spi@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        Zhang Shurong <zhang_shurong@...mail.com>
Subject: [PATCH v2] spi: tegra20-sflash: fix to check return value of platform_get_irq() in tegra_sflash_probe()

The platform_get_irq might be failed and return a negative result. So
there should have an error handling code.

Fixed this by adding an error handling code.

Fixes: 8528547bcc33 ("spi: tegra: add spi driver for sflash controller")
Signed-off-by: Zhang Shurong <zhang_shurong@...mail.com>
---
Changes in v2:
- reworded the commit message.

 drivers/spi/spi-tegra20-sflash.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c
index 4286310628a2..0c5507473f97 100644
--- a/drivers/spi/spi-tegra20-sflash.c
+++ b/drivers/spi/spi-tegra20-sflash.c
@@ -455,7 +455,11 @@ static int tegra_sflash_probe(struct platform_device *pdev)
 		goto exit_free_master;
 	}
 
-	tsd->irq = platform_get_irq(pdev, 0);
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0)
+		goto exit_free_master;
+	tsd->irq = ret;
+
 	ret = request_irq(tsd->irq, tegra_sflash_isr, 0,
 			dev_name(&pdev->dev), tsd);
 	if (ret < 0) {
-- 
2.41.0