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| author |  Russell Currey <ruscur@russell.cc>
| 2023-02-10 19:03:38 +1100 |
|---|---|---|
| committer |  Michael Ellerman <mpe@ellerman.id.au>
| 2023-02-12 22:12:36 +1100 |
| commit | c9fd2952754a03b2c14433c0318f4b46e9c0f2ef (patch) | |
| tree | 9b8b11931015c5ac11c454be8e0d7a60029f6cd8 /arch/powerpc/kernel | |
| parent | powerpc/pseries: Fix alignment of PLPKS structures and buffers (diff) | |
| download | linux-c9fd2952754a03b2c14433c0318f4b46e9c0f2ef.tar.gz linux-c9fd2952754a03b2c14433c0318f4b46e9c0f2ef.tar.bz2 linux-c9fd2952754a03b2c14433c0318f4b46e9c0f2ef.zip | |
powerpc/secvar: Fix incorrect return in secvar_sysfs_load()
secvar_ops->get_next() returns -ENOENT when there are no more variables
to return, which is expected behaviour.
Fix this by returning 0 if get_next() returns -ENOENT.
This fixes an issue introduced in commit bd5d9c743d38 ("powerpc: expose
secure variables to userspace via sysfs"), but the return code of
secvar_sysfs_load() was never checked so this issue never mattered.
Signed-off-by: Russell Currey <ruscur@russell.cc>
Signed-off-by: Andrew Donnellan <ajd@linux.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230210080401.345462-4-ajd@linux.ibm.com
Diffstat (limited to 'arch/powerpc/kernel')
| -rw-r--r-- | arch/powerpc/kernel/secvar-sysfs.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/secvar-sysfs.c b/arch/powerpc/kernel/secvar-sysfs.c index 1ee4640a2641..7fa5f8ed9542 100644 --- a/arch/powerpc/kernel/secvar-sysfs.c +++ b/arch/powerpc/kernel/secvar-sysfs.c @@ -179,8 +179,10 @@ static int secvar_sysfs_load(void) rc = secvar_ops->get_next(name, &namesize, NAME_MAX_SIZE); if (rc) { if (rc != -ENOENT) - pr_err("error getting secvar from firmware %d\n", - rc); + pr_err("error getting secvar from firmware %d\n", rc); + else + rc = 0; + break; } |