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Commit 1c652e1e authored by Jarkko Sakkinen's avatar Jarkko Sakkinen Committed by Greg Kroah-Hartman
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KEYS: trusted: Do not use WARN when encode fails



commit 050bf3c7 upstream.

When asn1_encode_sequence() fails, WARN is not the correct solution.

1. asn1_encode_sequence() is not an internal function (located
   in lib/asn1_encode.c).
2. Location is known, which makes the stack trace useless.
3. Results a crash if panic_on_warn is set.

It is also noteworthy that the use of WARN is undocumented, and it
should be avoided unless there is a carefully considered rationale to
use it.

Replace WARN with pr_err, and print the return value instead, which is
only useful piece of information.

Cc: stable@vger.kernel.org # v5.13+
Fixes: f2219745 ("security: keys: trusted: use ASN.1 TPM2 key format for the blobs")
Signed-off-by: default avatarJarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 26c6d7dc
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