From: xu xin <[email protected]>
If kzalloc() fails, the 'va' needs to be unmapped before returning -ENOMEM.
Reported-by: Zeal Robot <[email protected]>
Signed-off-by: xu xin <[email protected]>
---
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
On Mon, Aug 23, 2021 at 08:45:47PM +0800, [email protected] wrote:
> From: xu xin <[email protected]>
>
> If kzalloc() fails, the 'va' needs to be unmapped before returning -ENOMEM.
>
> Reported-by: Zeal Robot <[email protected]>
> Signed-off-by: xu xin <[email protected]>
> ---
> 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
Hi,
This is the friendly patch-bot of Greg Kroah-Hartman. You have sent him
a patch that has triggered this response. He used to manually respond
to these common problems, but in order to save his sanity (he kept
writing the same thing over and over, yet to different people), I was
created. Hopefully you will not take offence and will fix the problem
in your patch and resubmit it so that it can be accepted into the Linux
kernel tree.
You are receiving this message because of the following common error(s)
as indicated below:
- Your patch contains warnings and/or errors noticed by the
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- Your patch is malformed (tabs converted to spaces, linewrapped, etc.)
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If you wish to discuss this problem further, or you have questions about
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Greg will reply once he has dug out from the pending patches received
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thanks,
greg k-h's patch email bot