remove perror

client/emv/emv_pk.c

@@ -24,7 +24,7 @@
 #include "emv_pk.h"
 #include "crypto.h"
 #include "proxmark3.h"
-
+#include "util.h"
 #include <stdbool.h>
 #include <string.h>
 #include <stdlib.h>
@@ -398,7 +398,7 @@ static struct emv_pk *emv_pk_get_ca_pk_from_file(const char *fname,
 
     FILE *f = fopen(fname, "r");
     if (!f) {
-        perror("fopen");
+        PrintAndLogEx(ERR, "Error: can't open file %s.", fname);
         return NULL;
     }
 

client/flash.c

@@ -192,7 +192,6 @@ int flash_load(flash_file_t *ctx, const char *name, int can_write_bl) {
     fd = fopen(name, "rb");
     if (!fd) {
         PrintAndLogEx(ERR, _RED_("Could not open file") "%s  >>> ", name);
-        perror(NULL);
         goto fail;
     }
 

uart/uart_posix.c

@@ -238,7 +238,7 @@ void uart_close(const serial_port sp) {
     // 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");
+        printf("[!] UART error while closing port\n");
     }
     close(spu->fd);
     free(sp);