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tests: edac: Ensure vars are not changed in assert evaluation

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Coverity analysis reported following cases with side effect in assertion
(ASSERT_SIDE_EFFECT):

CID: 219574
CID: 219644
CID: 219659

Avoid issue by loading volatiles to local variables before assertion.

Fixes: #33079
Fixes: #33042
Fixes: #33030

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
This commit is contained in:
Andrei Emeltchenko 2021-03-08 11:17:17 +02:00 • committed by Anas Nashif
commit c1cd44cab4
1 changed files with 16 additions and 8 deletions
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24
tests/subsys/edac/ibecc/src/ibecc.c
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@ -135,7 +135,7 @@ static void test_inject(uint64_t addr, uint64_t mask, uint8_t type)
uint64_t test_addr;
uint32_t test_value;
int ret;
int ret, num_int;
interrupt = 0;
@ -173,12 +173,15 @@ static void test_inject(uint64_t addr, uint64_t mask, uint8_t type)
/* Wait for interrupt if needed */
k_busy_wait(USEC_PER_MSEC * DURATION);
zassert_not_equal(interrupt, 0, "Interrupt handler did not execute");
zassert_equal(interrupt, 1,
"Interrupt handler executed more than once! (%d)\n",
interrupt);
/* Load to local variable to avoid using volatile in assert */
num_int = interrupt;
TC_PRINT("Interrupt %d\n", interrupt);
zassert_not_equal(num_int, 0, "Interrupt handler did not execute");
zassert_equal(num_int, 1,
"Interrupt handler executed more than once! (%d)\n",
num_int);
TC_PRINT("Interrupt %d\n", num_int);
TC_PRINT("ECC Error Log 0x%llx\n", edac_ecc_error_log_get(dev));
TC_PRINT("Error: type %u, address 0x%llx, syndrome %u\n",
error_type, error_address, error_syndrome);
@ -188,15 +191,20 @@ static int check_values(void *p1, void *p2, void *p3)
{
intptr_t address = (intptr_t)p1;
intptr_t type = (intptr_t)p2;
intptr_t addr, errtype;
#if defined(CONFIG_USERSPACE)
TC_PRINT("Test communication in user mode thread\n");
zassert_true(_is_user_context(), "thread left in kernel mode");
#endif
/* Load to local variables to avoid using volatile in assert */
addr = error_address;
errtype = error_type;
/* Verify page address and error type */
zassert_equal(error_address, address, "Error address wrong");
zassert_equal(error_type, type, "Error type wrong");
zassert_equal(addr, address, "Error address wrong");
zassert_equal(errtype, type, "Error type wrong");
return 0;
}