crypto: inside_secure - Avoid dma map if size is zero

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From commit d03c544192 ("dma-mapping: disallow .map_sg
operations from returning zero on error"), dma_map_sg()
produces warning if size is 0. This results in visible
warnings if crypto length is zero.
To avoid that, we avoid calling dma_map_sg if size is zero.

Signed-off-by: Peter Harliman Liem <pliem@maxlinear.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

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Peter Harliman Liem 2022-09-13 16:03:47 +08:00 • committed by Herbert Xu

parent 072d36eefd

commit 49186a7d9e

1 changed files with 31 additions and 13 deletions

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44

drivers/crypto/inside-secure/safexcel_cipher.c

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