James Bottomley 710643b7fe efivarfs: Fix error on non-existent file ... commit 2ab0837cb9 upstream. When looking up a non-existent file, efivarfs returns -EINVAL if the file does not conform to the NAME-GUID format and -ENOENT if it does. This is caused by efivars_d_hash() returning -EINVAL if the name is not formatted correctly. This error is returned before simple_lookup() returns a negative dentry, and is the error value that the user sees. Fix by removing this check. If the file does not exist, simple_lookup() will return a negative dentry leading to -ENOENT and efivarfs_create() already has a validity check before it creates an entry (and will correctly return -EINVAL) Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: <stable@vger.kernel.org> [ardb: make efivarfs_valid_name() static] Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2024-12-30 11:01:05 +08:00
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Kconfig	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
Makefile	efi: vars: Move efivar caching layer into efivarfs	2022-06-24 20:40:19 +02:00
file.c	efivarfs: convert to ctime accessor functions	2023-07-13 10:28:06 +02:00
inode.c	efivarfs: Fix error on non-existent file	2024-12-30 11:01:05 +08:00
internal.h	efivarfs: Fix error on non-existent file	2024-12-30 11:01:05 +08:00
super.c	efivarfs: Fix error on non-existent file	2024-12-30 11:01:05 +08:00
vars.c	efivarfs: Request at most 512 bytes for variable names	2024-03-06 14:48:41 +00:00