* [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug
@ 2025-01-13 6:15 Dan Carpenter
2025-01-13 14:18 ` Ard Biesheuvel
2025-01-14 17:11 ` Markus Elfring
0 siblings, 2 replies; 4+ messages in thread
From: Dan Carpenter @ 2025-01-13 6:15 UTC (permalink / raw)
To: James Bottomley
Cc: Jeremy Kerr, Ard Biesheuvel, linux-efi, linux-kernel,
kernel-janitors
The kernel_file_open() function doesn't return NULL, it retursn error
pointers. Fix the error checking to match.
Fixes: eb11e99adef8 ("efivarfs: add variable resync after hibernation")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
---
fs/efivarfs/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
index 961264f628dc..968e4af7b7e4 100644
--- a/fs/efivarfs/super.c
+++ b/fs/efivarfs/super.c
@@ -492,7 +492,7 @@ static int efivarfs_pm_notify(struct notifier_block *nb, unsigned long action,
/* O_NOATIME is required to prevent oops on NULL mnt */
file = kernel_file_open(&path, O_RDONLY | O_DIRECTORY | O_NOATIME,
current_cred());
- if (!file)
+ if (IS_ERR(file))
return NOTIFY_DONE;
rescan_done = true;
--
2.45.2
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug
2025-01-13 6:15 [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug Dan Carpenter
@ 2025-01-13 14:18 ` Ard Biesheuvel
2025-01-13 14:25 ` Dan Carpenter
2025-01-14 17:11 ` Markus Elfring
1 sibling, 1 reply; 4+ messages in thread
From: Ard Biesheuvel @ 2025-01-13 14:18 UTC (permalink / raw)
To: Dan Carpenter
Cc: James Bottomley, Jeremy Kerr, linux-efi, linux-kernel,
kernel-janitors
On Mon, 13 Jan 2025 at 07:16, Dan Carpenter <dan.carpenter@linaro.org> wrote:
>
> The kernel_file_open() function doesn't return NULL, it retursn error
> pointers. Fix the error checking to match.
>
> Fixes: eb11e99adef8 ("efivarfs: add variable resync after hibernation")
> Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
> ---
> fs/efivarfs/super.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
Thanks - I'll fold this in rather than apply it on top though.
> diff --git a/fs/efivarfs/super.c b/fs/efivarfs/super.c
> index 961264f628dc..968e4af7b7e4 100644
> --- a/fs/efivarfs/super.c
> +++ b/fs/efivarfs/super.c
> @@ -492,7 +492,7 @@ static int efivarfs_pm_notify(struct notifier_block *nb, unsigned long action,
> /* O_NOATIME is required to prevent oops on NULL mnt */
> file = kernel_file_open(&path, O_RDONLY | O_DIRECTORY | O_NOATIME,
> current_cred());
> - if (!file)
> + if (IS_ERR(file))
> return NOTIFY_DONE;
>
> rescan_done = true;
> --
> 2.45.2
>
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug
2025-01-13 14:18 ` Ard Biesheuvel
@ 2025-01-13 14:25 ` Dan Carpenter
0 siblings, 0 replies; 4+ messages in thread
From: Dan Carpenter @ 2025-01-13 14:25 UTC (permalink / raw)
To: Ard Biesheuvel
Cc: James Bottomley, Jeremy Kerr, linux-efi, linux-kernel,
kernel-janitors
On Mon, Jan 13, 2025 at 03:18:05PM +0100, Ard Biesheuvel wrote:
> On Mon, 13 Jan 2025 at 07:16, Dan Carpenter <dan.carpenter@linaro.org> wrote:
> >
> > The kernel_file_open() function doesn't return NULL, it retursn error
> > pointers. Fix the error checking to match.
> >
> > Fixes: eb11e99adef8 ("efivarfs: add variable resync after hibernation")
> > Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
> > ---
> > fs/efivarfs/super.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
>
> Thanks - I'll fold this in rather than apply it on top though.
Sure. No worries.
regards,
dan carpenter
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug
2025-01-13 6:15 [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug Dan Carpenter
2025-01-13 14:18 ` Ard Biesheuvel
@ 2025-01-14 17:11 ` Markus Elfring
1 sibling, 0 replies; 4+ messages in thread
From: Markus Elfring @ 2025-01-14 17:11 UTC (permalink / raw)
To: Dan Carpenter, linux-efi, Ard Biesheuvel, James Bottomley
Cc: kernel-janitors, LKML, Jeremy Kerr
> The kernel_file_open() function doesn't return NULL, it retursn error
returns?
> pointers. Fix the error checking to match.
Regards,
Markus
^ permalink raw reply [flat|nested] 4+ messages in thread
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2025-01-13 6:15 [PATCH next] efivarfs: Fix a NULL vs IS_ERR() bug Dan Carpenter
2025-01-13 14:18 ` Ard Biesheuvel
2025-01-13 14:25 ` Dan Carpenter
2025-01-14 17:11 ` Markus Elfring
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