asix-sigma: Weed out in-condition assignments

[libsigrok.git] / hardware / asix-sigma / asix-sigma.c

diff --git a/hardware/asix-sigma/asix-sigma.c b/hardware/asix-sigma/asix-sigma.c
index f813edd91196b0e83fa973f5703efc89f615b318..931dfaeec729dbffd777d210bfb6b69bb482c920 100644 (file)
--- a/hardware/asix-sigma/asix-sigma.c
+++ b/hardware/asix-sigma/asix-sigma.c
@@ -543,25 +543,29 @@ static int upload_firmware(int firmware_idx, struct dev_context *devc)
        size_t buf_size;
        unsigned char result[32];
        const char *firmware = sigma_firmware_files[firmware_idx];
+       struct ftdi_context *ftdic = &devc->ftdic;
 
        /* Make sure it's an ASIX SIGMA. */
-       if ((ret = ftdi_usb_open_desc(&devc->ftdic,
-               USB_VENDOR, USB_PRODUCT, USB_DESCRIPTION, NULL)) < 0) {
+       ret = ftdi_usb_open_desc(ftdic, USB_VENDOR, USB_PRODUCT,
+                                USB_DESCRIPTION, NULL);
+       if (ret < 0) {
                sr_err("ftdi_usb_open failed: %s",
-                      ftdi_get_error_string(&devc->ftdic));
+                      ftdi_get_error_string(ftdic));
                return 0;
        }
 
-       if ((ret = ftdi_set_bitmode(&devc->ftdic, 0xdf, BITMODE_BITBANG)) < 0) {
+       ret = ftdi_set_bitmode(ftdic, 0xdf, BITMODE_BITBANG);
+       if (ret < 0) {
                sr_err("ftdi_set_bitmode failed: %s",
-                      ftdi_get_error_string(&devc->ftdic));
+                      ftdi_get_error_string(ftdic));
                return 0;
        }
 
        /* Four times the speed of sigmalogan - Works well. */
-       if ((ret = ftdi_set_baudrate(&devc->ftdic, 750000)) < 0) {
+       ret = ftdi_set_baudrate(ftdic, 750000);
+       if (ret < 0) {
                sr_err("ftdi_set_baudrate failed: %s",
-                      ftdi_get_error_string(&devc->ftdic));
+                      ftdi_get_error_string(ftdic));
                return 0;
        }
 
@@ -571,7 +575,8 @@ static int upload_firmware(int firmware_idx, struct dev_context *devc)
                return ret;
 
        /* Prepare firmware. */
-       if ((ret = bin2bitbang(firmware, &buf, &buf_size)) != SR_OK) {
+       ret = bin2bitbang(firmware, &buf, &buf_size);
+       if (ret != SR_OK) {
                sr_err("An error occured while reading the firmware: %s",
                       firmware);
                return ret;
@@ -583,13 +588,14 @@ static int upload_firmware(int firmware_idx, struct dev_context *devc)
 
        g_free(buf);
 
-       if ((ret = ftdi_set_bitmode(&devc->ftdic, 0x00, BITMODE_RESET)) < 0) {
+       ret = ftdi_set_bitmode(ftdic, 0x00, BITMODE_RESET);
+       if (ret < 0) {
                sr_err("ftdi_set_bitmode failed: %s",
-                      ftdi_get_error_string(&devc->ftdic));
+                      ftdi_get_error_string(ftdic));
                return SR_ERR;
        }
 
-       ftdi_usb_purge_buffers(&devc->ftdic);
+       ftdi_usb_purge_buffers(ftdic);
 
        /* Discard garbage. */
        while (1 == sigma_read(&pins, 1, devc))