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tests: threads: fix uninitialized scalar variable

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In the file variable val is not initialized,
causing the variable stack_ptr, pos, points to uninitialized data.
Initialize the variable val according to the code and commits.

Fixes #37916

Signed-off-by: Naiyuan Tian <naiyuan.tian@intel.com>
This commit is contained in:
Naiyuan Tian 2021-08-31 00:55:36 +08:00 • committed by Christopher Friedt
commit 1f99a0ca18
1 changed files with 2 additions and 1 deletions
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3
tests/kernel/threads/thread_stack/src/main.c
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@ -92,7 +92,7 @@ void stack_buffer_scenarios(void)
k_thread_stack_t *stack_obj = scenario_data.stack;
size_t obj_size = scenario_data.object_size;
size_t stack_size, unused, carveout, reserved, alignment, adjusted;
uint8_t val;
uint8_t val = 0;
char *stack_start, *stack_ptr, *stack_end, *obj_start, *obj_end;
char *stack_buf;
volatile char *pos;
@ -161,6 +161,7 @@ void stack_buffer_scenarios(void)
* First test does direct read & write starting at the estimated
* stack pointer up to the highest addresses in the buffer
*/
val = *stack_start;
stack_ptr = &val;
for (pos = stack_ptr; pos < stack_end; pos++) {
/* pos is volatile so this doesn't get optimized out */