2023-10-06 09:06:23

by Maxim Korotkov

[permalink] [raw]
Subject: [PATCH] rtc: efi: fixed typo in efi_procfs()

After the first check of the value of the "eft" variable
it does not change, it is obvious that a copy-paste
error was made here and the value of variable "alm"
should be checked here.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 101ca8d05913 ("rtc: efi: Enable SET/GET WAKEUP services as optional")
Signed-off-by: Maxim Korotkov <[email protected]>
---
drivers/rtc/rtc-efi.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c
index dc6b0f4a54e2..fa8bf82df948 100644
--- a/drivers/rtc/rtc-efi.c
+++ b/drivers/rtc/rtc-efi.c
@@ -227,7 +227,7 @@ static int efi_procfs(struct device *dev, struct seq_file *seq)
enabled == 1 ? "yes" : "no",
pending == 1 ? "yes" : "no");

- if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
+ if (alm.timezone == EFI_UNSPECIFIED_TIMEZONE)
seq_puts(seq, "Timezone\t: unspecified\n");
else
/* XXX fixme: convert to string? */
--
2.34.1


2023-10-15 21:03:20

by Alexandre Belloni

[permalink] [raw]
Subject: Re: [PATCH] rtc: efi: fixed typo in efi_procfs()

On 06/10/2023 12:04:44+0300, Maxim Korotkov wrote:
> After the first check of the value of the "eft" variable
> it does not change, it is obvious that a copy-paste
> error was made here and the value of variable "alm"
> should be checked here.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> Fixes: 101ca8d05913 ("rtc: efi: Enable SET/GET WAKEUP services as optional")
I had a look at the history and this is actually a bug that predates
v2.6.12-rc2 and so its introduction is not in the main git repo history.

I guess nobody actually cares and I'm very tempted to just rip out this
procfs file.


> Signed-off-by: Maxim Korotkov <[email protected]>
> ---
> drivers/rtc/rtc-efi.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/rtc/rtc-efi.c b/drivers/rtc/rtc-efi.c
> index dc6b0f4a54e2..fa8bf82df948 100644
> --- a/drivers/rtc/rtc-efi.c
> +++ b/drivers/rtc/rtc-efi.c
> @@ -227,7 +227,7 @@ static int efi_procfs(struct device *dev, struct seq_file *seq)
> enabled == 1 ? "yes" : "no",
> pending == 1 ? "yes" : "no");
>
> - if (eft.timezone == EFI_UNSPECIFIED_TIMEZONE)
> + if (alm.timezone == EFI_UNSPECIFIED_TIMEZONE)
> seq_puts(seq, "Timezone\t: unspecified\n");
> else
> /* XXX fixme: convert to string? */
> --
> 2.34.1
>

--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

2023-10-15 21:03:38

by Alexandre Belloni

[permalink] [raw]
Subject: Re: [PATCH] rtc: efi: fixed typo in efi_procfs()


On Fri, 06 Oct 2023 12:04:44 +0300, Maxim Korotkov wrote:
> After the first check of the value of the "eft" variable
> it does not change, it is obvious that a copy-paste
> error was made here and the value of variable "alm"
> should be checked here.
>
> Found by Linux Verification Center (linuxtesting.org) with SVACE.
>
> [...]

I changed the fixes tag to:
Fixes: 501385f2a783 ("rtc: efi: add efi_procfs in efi_rtc_ops")

Applied, thanks!

[1/1] rtc: efi: fixed typo in efi_procfs()
commit: f5f4c982f7c8a8cffb2663078a40ecd7d82b534d

Best regards,

--
Alexandre Belloni, co-owner and COO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com