Update README.md

[proxmark3-svn] / client / uart.c

diff --git a/client/uart.c b/client/uart.c
index 71cea1109d1e27ef191d871d8cde07f802eed36f..e538499bf6ea3a6bf933796a9ce4a58f37dac8dd 100644 (file)
--- a/client/uart.c
+++ b/client/uart.c
@@ -119,7 +119,12 @@ void uart_close(const serial_port sp) {
   fl.l_start  = 0;
   fl.l_len    = 0;
   fl.l_pid    = getpid();
-  fcntl(spu->fd, F_SETLK, &fl);
+
+  // Does the system allows us to place a lock on this file descriptor
+  int err = fcntl(spu->fd, F_SETLK, &fl);
+  if ( err == -1) {
+     //perror("fcntl");
+  }  
   close(spu->fd);
   free(sp);
 }