card-iasecc.c: fix 1 compiler warning
card-iasecc.c:3206:3: error: variable 'rv' is used uninitialized whenever 'if'
condition is false [-Werror,-Wsometimes-uninitialized]
...LOG_TEST_RET(ctx, SC_ERROR_INVALID_ARGUMENTS, "Need RSA_HASH_SHA1 or RSA_HASH_SHA256 algorithm");
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/libopensc/log.h:90:36: note: expanded from macro 'LOG_TEST_RET'
...r, text) SC_TEST_RET((ctx), SC_LOG_DEBUG_NORMAL, (r), (text))
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../src/libopensc/log.h:84:6: note: expanded from macro 'SC_TEST_RET'
if (_ret < 0) { \
^~~~~~~~
card-iasecc.c:3207:20: note: uninitialized use occurs here
LOG_TEST_RET(ctx, rv, "Cannot get QSign data");
^~
../../src/libopensc/log.h:90:77: note: expanded from macro 'LOG_TEST_RET'
...r, text) SC_TEST_RET((ctx), SC_LOG_DEBUG_NORMAL, (r), (text))
^
../../src/libopensc/log.h:83:14: note: expanded from macro 'SC_TEST_RET'
int _ret = (r); \
^
card-iasecc.c:3206:3: note: remove the 'if' if its condition is always true
LOG_TEST_RET(ctx, SC_ERROR_INVALID_ARGUMENTS, "Need RSA_...
^
../../src/libopensc/log.h:90:36: note: expanded from macro 'LOG_TEST_RET'
^
../../src/libopensc/log.h:84:2: note: expanded from macro 'SC_TEST_RET'
if (_ret < 0) { \
^
card-iasecc.c:3185:8: note: initialize the variable 'rv' to silence this warning
int rv;
^
= 0
ae67f16e9b