[sfstudio]

Code: Select all

--- usb_modeswitch.c    2020-07-10 20:48:03.000000000 +0500
+++ usb_modeswitch.c.my 2021-11-02 14:17:45.585189952 +0500
@@ -376,7 +376,7 @@
                        case 'J': ModeMap = ModeMap + HUAWEINEW_MODE; break;
                        case 'X': ModeMap = ModeMap + HUAWEIALT_MODE; break;
                        case 'S': ModeMap = ModeMap + SIERRA_MODE; break;
-                       case 'O': ModeMap = ModeMap + SONY_MODE; break;; break;
+                       case 'O': ModeMap = ModeMap + SONY_MODE; break;
                        case 'B': ModeMap = ModeMap + QISDA_MODE; break;
                        case 'E': ModeMap = ModeMap + QUANTA_MODE; break;
                        case 'G': ModeMap = ModeMap + GCT_MODE; break;
@@ -1721,13 +1724,13 @@
        if (!vendor || *productList == '\0')
                return NULL;

-       listcopy = malloc(strlen(productList)+1);
-
        if (libusb_get_device_list(ctx, &devs) < 0) {
                perror("Libusb failed to get USB access!");
                return 0;
        }

+       listcopy = malloc(strlen(productList)+1);
+
        while ((dev = devs[i++]) != NULL) {
                struct libusb_device_descriptor descriptor;
                libusb_get_device_descriptor(dev, &descriptor);
                

[LOM]

Right, don't allocate memory until you know that you'll need it.

[sfstudio]

Hi. Next...

In code periodic call search devices function in code

Code: Select all

        dev = search_devices(&numDefaults, DefaultVendor, DefaultProductList, TargetClass,
                Configuration, searchMode);

Variable dev declarated as static struct libusb_device *dev = NULL;

search_devices, in error case, must be return NULL, not 0.

Code: Select all

--- a/user/usb_modeswitch/usb_modeswitch.c
+++ b/user/usb_modeswitch/usb_modeswitch.c
@@ -1726,7 +1726,7 @@ struct libusb_device* search_devices( int *numFound, int vendor, char* productLi
.
        if (libusb_get_device_list(ctx, &devs) < 0) {
                perror("Libusb failed to get USB access!");
-               return 0;
+               return NULL;
        }
.
        listcopy = malloc(strlen(productList)+1);

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