crypto: caam/qi - fix error handling in ERN handler

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ERN handler calls the caam/qi frontend "done" callback with a status
of -EIO. This is incorrect, since the callback expects a status value
meaningful for the crypto engine - hence the cryptic messages
like the one below:
platform caam_qi: 15: unknown error source

Fix this by providing the callback with:
-the status returned by the crypto engine (fd[status]) in case
it contains an error, OR
-a QI "No error" code otherwise; this will trigger the message:
platform caam_qi: 50000000: Queue Manager Interface: No error
which is fine, since QMan driver provides details about the cause of
failure

Cc: <stable@vger.kernel.org> # v5.1+
Fixes: 67c2315def ("crypto: caam - add Queue Interface (QI) backend support")
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Reviewed-by: Iuliana Prodan <iuliana.prodan@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Horia Geantă 2019-07-31 16:08:02 +03:00 • committed by Herbert Xu

parent bc67d04e75

commit 51fab3d730

3 changed files with 6 additions and 1 deletions

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1

drivers/crypto/caam/error.c

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5

drivers/crypto/caam/qi.c

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1

drivers/crypto/caam/regs.h

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