linux-kernel - [PATCH -next] soc: ti: pruss: Fix return value check

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]

Date:   Tue, 15 Sep 2020 07:57:32 +0000
From:   Wei Yongjun <weiyongjun1@...wei.com>
To:     Santosh Shilimkar <ssantosh@...nel.org>,
        Grzegorz Jaszczyk <grzegorz.jaszczyk@...aro.org>
CC:     Wei Yongjun <weiyongjun1@...wei.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <kernel-janitors@...r.kernel.org>, Hulk Robot <hulkci@...wei.com>
Subject: [PATCH -next] soc: ti: pruss: Fix return value check

In case of error, the function of_device_get_match_data() returns NULL
pointer not ERR_PTR(). The IS_ERR() test in the return value check
should be replaced with NULL test.

Fixes: ba59c9b43c86 ("soc: ti: pruss: support CORECLK_MUX and IEPCLK_MUX")
Reported-by: Hulk Robot <hulkci@...wei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@...wei.com>
---
 drivers/soc/ti/pruss.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/ti/pruss.c b/drivers/soc/ti/pruss.c
index cc0b4ad7a3d3..582f48051c30 100644
--- a/drivers/soc/ti/pruss.c
+++ b/drivers/soc/ti/pruss.c
@@ -126,7 +126,7 @@ static int pruss_clk_init(struct pruss *pruss, struct device_node *cfg_node)
 	int ret = 0;
 
 	data = of_device_get_match_data(dev);
-	if (IS_ERR(data))
+	if (!data)
 		return -ENODEV;
 
 	clks_np = of_get_child_by_name(cfg_node, "clocks");
@@ -175,7 +175,7 @@ static int pruss_probe(struct platform_device *pdev)
 	const char *mem_names[PRUSS_MEM_MAX] = { "dram0", "dram1", "shrdram2" };
 
 	data = of_device_get_match_data(&pdev->dev);
-	if (IS_ERR(data)) {
+	if (!data) {
 		dev_err(dev, "missing private data\n");
 		return -ENODEV;
 	}