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| author | Joel Fernandes <joelaf@google.com> | 2016-10-20 00:34:02 -0700 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2016-11-11 10:36:46 -0800 |
| commit | d8991f51e55fd3c5b8ad055653a5998e53d4ec91 (patch) | |
| tree | 9588f96b17e7584833161aefd1025e7f8f40930f /fs/pstore | |
| parent | 109704492ef637956265ec2eb72ae7b3b39eb6f4 (diff) | |
| download | linux-d8991f51e55fd3c5b8ad055653a5998e53d4ec91.tar.gz linux-d8991f51e55fd3c5b8ad055653a5998e53d4ec91.tar.bz2 linux-d8991f51e55fd3c5b8ad055653a5998e53d4ec91.zip | |
pstore: Warn on PSTORE_TYPE_PMSG using deprecated function
PMSG now uses ramoops_pstore_write_buf_user() instead of ...write_buf().
Print a ratelimited warning if gets accidentally called.
Signed-off-by: Joel Fernandes <joelaf@google.com>
[kees: adjusted commit log and added -EINVAL return]
Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'fs/pstore')
| -rw-r--r-- | fs/pstore/ram.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 6ad831b9d1b8..6d1393965b0a 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -288,10 +288,8 @@ static int notrace ramoops_pstore_write_buf(enum pstore_type_id type, persistent_ram_write(cxt->fprz, buf, size); return 0; } else if (type == PSTORE_TYPE_PMSG) { - if (!cxt->mprz) - return -ENOMEM; - persistent_ram_write(cxt->mprz, buf, size); - return 0; + pr_warn_ratelimited("PMSG shouldn't call %s\n", __func__); + return -EINVAL; } if (type != PSTORE_TYPE_DMESG) |