fix memset bug

sw/applications/example_spi_read/main.c

@@ -117,10 +117,12 @@ uint32_t test_read(uint32_t *test_buffer, uint32_t len) {
     if (status != FLASH_OK) exit(EXIT_FAILURE);
 
     // Check if what we read is correct (i.e. flash_data == test_buffer)
-    return check_result(test_buffer, len);
+    uint32_t res =  check_result(test_buffer, len);
 
     // Reset the flash data buffer
     memset(flash_data, 0, len * sizeof(uint8_t));
+
+    return res;
 }
 
 uint32_t test_read_dma(uint32_t *test_buffer, uint32_t len) {
@@ -129,10 +131,12 @@ uint32_t test_read_dma(uint32_t *test_buffer, uint32_t len) {
     if (status != FLASH_OK) exit(EXIT_FAILURE);
 
     // Check if what we read is correct (i.e. flash_data == test_buffer)
-    return check_result(test_buffer, len);
+    uint32_t res = check_result(test_buffer, len);
 
     // Reset the flash data buffer
     memset(flash_data, 0, len * sizeof(uint8_t));
+
+    return res;
 }
 
 uint32_t test_read_quad(uint32_t *test_buffer, uint32_t len) {
@@ -141,10 +145,12 @@ uint32_t test_read_quad(uint32_t *test_buffer, uint32_t len) {
     if (status != FLASH_OK) exit(EXIT_FAILURE);
 
     // Check if what we read is correct (i.e. flash_data == test_buffer)
-    return check_result(test_buffer, len);
+    uint32_t res = check_result(test_buffer, len);
 
     // Reset the flash data buffer
     memset(flash_data, 0, len * sizeof(uint8_t));
+
+    return res;
 }
 
 uint32_t test_read_quad_dma(uint32_t *test_buffer, uint32_t len) {
@@ -153,10 +159,12 @@ uint32_t test_read_quad_dma(uint32_t *test_buffer, uint32_t len) {
     if (status != FLASH_OK) exit(EXIT_FAILURE);
 
     // Check if what we read is correct (i.e. flash_data == test_buffer)
-    return check_result(test_buffer, len);
+    uint32_t res = check_result(test_buffer, len);
 
     // Reset the flash data buffer
     memset(flash_data, 0, len * sizeof(uint8_t));
+
+    return res;
 }
 
 uint32_t check_result(uint8_t *test_buffer, uint32_t len) {