libkae: fix build warning on aarch64

[parheliamm]

This patch to fix below error on aarch64
[ 34s] ./utils/engine_log.h:73:13: error: ignoring return value of 'ftruncate' declared with attribute 'warn_unused_result' [-Werror=unused-result]
[ 34s] 73 | ftruncate(g_kae_debug_log_file->_fileno, 0);
[ 34s] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[ 84s] alg/pkey/hpre_rsa.c: In function 'hpre_rsa_private_encrypt':
[ 84s] alg/pkey/hpre_rsa.c:546:5: error: 'num_bytes' may be used uninitialized in this function [-Werror=maybe-uninitialized]
[ 84s] 546 | hpre_free_bn_ctx_buf(bn_ctx, in_buf, num_bytes);
[ 84s] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 84s] alg/pkey/hpre_rsa.c: In function 'hpre_rsa_public_encrypt':
[ 84s] alg/pkey/hpre_rsa.c:440:5: error: 'num_bytes' may be used uninitialized in this function [-Werror=maybe-uninitialized]
[ 84s] 440 | hpre_free_bn_ctx_buf(bn_ctx, in_buf, num_bytes);
[ 84s] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 84s] alg/pkey/hpre_rsa.c:440:5: error: 'bn_ctx' may be used uninitialized in this function [-Werror=maybe-uninitialized]

There is no functional change.

Signed-off-by: Chenxi Mao [email protected]

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f3735b0 | libkae: fix build warning on aarch64

This patch to fix below error on aarch64
[ 34s] ./utils/engine_log.h:73:13: error: ignoring return value of 'ftruncate' declared with attribute 'warn_unused_result' [-Werror=unused-result]
[ 34s] 73 | ftruncate(g_kae_debug_log_file->_fileno, 0);
[ 34s] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

[ 84s] alg/pkey/hpre_rsa.c: In function 'hpre_rsa_private_encrypt':
[ 84s] alg/pkey/hpre_rsa.c:546:5: error: 'num_bytes' may be used uninitialized in this function [-Werror=maybe-uninitialized]
[ 84s] 546 | hpre_free_bn_ctx_buf(bn_ctx, in_buf, num_bytes);
[ 84s] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 84s] alg/pkey/hpre_rsa.c: In function 'hpre_rsa_public_encrypt':
[ 84s] alg/pkey/hpre_rsa.c:440:5: error: 'num_bytes' may be used uninitialized in this function [-Werror=maybe-uninitialized]
[ 84s] 440 | hpre_free_bn_ctx_buf(bn_ctx, in_buf, num_bytes);
[ 84s] | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 84s] alg/pkey/hpre_rsa.c:440:5: error: 'bn_ctx' may be used uninitialized in this function [-Werror=maybe-uninitialized]

There is no functional change.

Signed-off-by: Chenxi Mao [email protected]

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