Messages in this thread Patch in this message | | | Date | Mon, 23 Aug 2021 20:45:47 +0800 (CST) | From | <> | Subject | [PATCH] dio: add missing iounmap() after ioremap() |
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From: xu xin <xu.xin16@zte.com.cn>
If kzalloc() fails, the 'va' needs to be unmapped before returning -ENOMEM.
Reported-by: Zeal Robot <zealci@zte.com.cn> Signed-off-by: xu xin <xu.xin16@zte.com.cn> --- drivers/dio/dio.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/dio/dio.c b/drivers/dio/dio.c index 4c06c93..7d19250 100644 --- a/drivers/dio/dio.c +++ b/drivers/dio/dio.c @@ -218,9 +218,11 @@ static int __init dio_init(void)
/* Found a board, allocate it an entry in the list */ dev = kzalloc(sizeof(struct dio_dev), GFP_KERNEL); - if (!dev) + if (!dev) { + if (scode >= DIOII_SCBASE) + iounmap(va); return -ENOMEM; + } dev->bus = &dio_bus; dev->dev.parent = &dio_bus.dev; dev->dev.bus = &dio_bus_type; -- 2.15.2
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