korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-28 22:54:05 +08:00
Code Issues Packages Projects Releases Wiki Activity

serial: liteuart: fix return value check in liteuart_probe()

Browse Source 
In case of error, the function devm_platform_get_and_ioremap_resource()
returns ERR_PTR() and never returns NULL. The NULL test in the return
value check should be replaced with IS_ERR().

Fixes: 1da81e5562 ("drivers/tty/serial: add LiteUART driver")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210305034929.3234352-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Wei Yongjun 2021-03-05 03:49:29 +00:00 committed by Greg Kroah-Hartman
parent 81171e7d31
commit cebeddd6d0
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/tty/serial/liteuart.c
View File

@ -270,8 +270,8 @@ static int liteuart_probe(struct platform_device *pdev)
/* get membase */
port->membase = devm_platform_get_and_ioremap_resource(pdev, 0, NULL);
if (!port->membase)
return -ENXIO;
if (IS_ERR(port->membase))
return PTR_ERR(port->membase);
/* values not from device tree */
port->dev = &pdev->dev;