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freemodbus: fix memcmp result truncated to 1 byte

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Coverity ID: 291158


* Original commit: espressif/esp-idf@30e97e0920
This commit is contained in:
aleks
2020-06-18 12:33:02 +02:00
parent 6fd4511a39
commit 3e45775f25
1 changed files with 1 additions and 1 deletions
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2
components/freemodbus/serial_master/modbus_controller/mbc_serial_master.c
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@@ -361,7 +361,7 @@ static esp_err_t mbc_serial_master_set_request(char* name, mb_param_mode_t mode,
continue; // The length of strings is different then check next record in the table
}
// Compare the name of parameter with parameter key from table
uint8_t comp_result = memcmp((const char*)name, (const char*)reg_ptr->param_key, (size_t)param_key_len);
int comp_result = memcmp((const void*)name, (const void*)reg_ptr->param_key, (size_t)param_key_len);
if (comp_result == 0) {
// The correct line is found in the table and reg_ptr points to the found parameter description
request->slave_addr = reg_ptr->mb_slave_addr;