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fix: double free shouldn't happen now

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This commit is contained in:
iceman1001
2017-09-26 22:22:23 +02:00
parent 20e4af5856
commit 08bf63c748
3 changed files with 12 additions and 10 deletions
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6
uart/uart_win32.c
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@@ -69,7 +69,7 @@ serial_port uart_open(const char* pcPortName) {
sp->hPort = CreateFileA(acPortName, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
if (sp->hPort == INVALID_HANDLE_VALUE) {
uart_close(sp);
return INVALID_SERIAL_PORT;
return INVALID_SERIAL_PORT;
}
// Prepare the device control
@@ -107,7 +107,9 @@ serial_port uart_open(const char* pcPortName) {
}
void uart_close(const serial_port sp) {
if (!sp) return;
if (!sp) return;
if (sp == INVALID_SERIAL_PORT) return;
if (sp == CLAIMED_SERIAL_PORT) return;
if (((serial_port_windows*)sp)->hPort != NULL )
CloseHandle(((serial_port_windows*)sp)->hPort);
free(sp);