openocd: fix simple cases of NULL comparison

[openocd.git] / src / jtag / drivers / opendous.c

diff --git a/src/jtag/drivers/opendous.c b/src/jtag/drivers/opendous.c
index 5572c4a0edcd86771084ddfc5bac3e419504a46a..6881959c33761a348ae410b8fcf71e0e14a8d1b0 100644 (file)
--- a/src/jtag/drivers/opendous.c
+++ b/src/jtag/drivers/opendous.c
@@ -144,7 +144,7 @@ static int opendous_usb_write(struct opendous_jtag *opendous_jtag, int out_lengt
 static int opendous_usb_read(struct opendous_jtag *opendous_jtag);
 
 /* helper functions */
-int opendous_get_version_info(void);
+static int opendous_get_version_info(void);
 
 #ifdef _DEBUG_USB_COMMS_
 static void opendous_debug_buffer(uint8_t *buffer, int length);
@@ -161,7 +161,7 @@ COMMAND_HANDLER(opendous_handle_opendous_type_command)
                return ERROR_OK;
 
        /* only if the cable name wasn't overwritten by cmdline */
-       if (opendous_type == NULL) {
+       if (!opendous_type) {
                /* REVISIT first verify that it's listed in cables[] ... */
                opendous_type = strdup(CMD_ARGV[0]);
        }
@@ -256,7 +256,7 @@ static int opendous_execute_queue(void)
        enum scan_type type;
        uint8_t *buffer;
 
-       while (cmd != NULL) {
+       while (cmd) {
                switch (cmd->type) {
                        case JTAG_RUNTEST:
                                LOG_DEBUG_IO("runtest %i cycles, end in %i", cmd->cmd.runtest->num_cycles,
@@ -310,7 +310,7 @@ static int opendous_execute_queue(void)
                                break;
 
                        case JTAG_SLEEP:
-                               LOG_DEBUG_IO("sleep %" PRIi32, cmd->cmd.sleep->us);
+                               LOG_DEBUG_IO("sleep %" PRIu32, cmd->cmd.sleep->us);
                                opendous_tap_execute();
                                jtag_sleep(cmd->cmd.sleep->us);
                                break;
@@ -331,7 +331,7 @@ static int opendous_init(void)
 
        cur_opendous_probe = opendous_probes;
 
-       if (opendous_type == NULL) {
+       if (!opendous_type) {
                opendous_type = strdup("opendous");
                LOG_WARNING("No opendous_type specified, using default 'opendous'");
        }
@@ -386,25 +386,17 @@ static int opendous_quit(void)
 {
        opendous_usb_close(opendous_jtag_handle);
 
-       if (usb_out_buffer) {
-               free(usb_out_buffer);
-               usb_out_buffer = NULL;
-       }
+       free(usb_out_buffer);
+       usb_out_buffer = NULL;
 
-       if (usb_in_buffer) {
-               free(usb_in_buffer);
-               usb_in_buffer = NULL;
-       }
+       free(usb_in_buffer);
+       usb_in_buffer = NULL;
 
-       if (pending_scan_results_buffer) {
-               free(pending_scan_results_buffer);
-               pending_scan_results_buffer = NULL;
-       }
+       free(pending_scan_results_buffer);
+       pending_scan_results_buffer = NULL;
 
-       if (opendous_type) {
-               free(opendous_type);
-               opendous_type = NULL;
-       }
+       free(opendous_type);
+       opendous_type = NULL;
 
        return ERROR_OK;
 }
@@ -552,7 +544,7 @@ int opendous_get_status(void)
        return ERROR_OK;
 }
 
-int opendous_get_version_info(void)
+static int opendous_get_version_info(void)
 {
        return ERROR_OK;
 }
@@ -697,8 +689,7 @@ int opendous_tap_execute(void)
                                return ERROR_JTAG_QUEUE_FAILED;
                        }
 
-                       if (pending_scan_result->buffer != NULL)
-                               free(pending_scan_result->buffer);
+                       free(pending_scan_result->buffer);
                }
 
                opendous_tap_init();