X-Git-Url: https://git.ao2.it/libam7xxx.git/blobdiff_plain/ed6e13d9ce88f2cc1decf9a1defe381613274d27..224afa9a6451c66e07cf5bf8912245c1f4563e2e:/src/am7xxx.c diff --git a/src/am7xxx.c b/src/am7xxx.c index 006b216..8837e41 100644 --- a/src/am7xxx.c +++ b/src/am7xxx.c @@ -747,12 +747,15 @@ static int open_device(am7xxx_context *ctx, debug(ctx, "libusb_claim_interface failed\n"); debug(ctx, "Cannot claim interface %hhu\n", (*dev)->desc->interface_number); -out_libusb_close: - libusb_close((*dev)->usb_device); - (*dev)->usb_device = NULL; + goto out_libusb_close; } out: return ret; + +out_libusb_close: + libusb_close((*dev)->usb_device); + (*dev)->usb_device = NULL; + return ret; } typedef enum { @@ -769,8 +772,9 @@ typedef enum { * * When 'op' == SCAN_OP_OPEN_DEVICE the function opens the supported USB * device with index 'open_device_index' and returns the correspondent - * am7xxx_device in the 'dev' parameter; the function returns 0 on success, - * 1 if the device was already open and a negative value on error. + * am7xxx_device in the 'dev' parameter; the function returns the value from + * open_device(), which is 0 on success, 1 if the device was already open and + * a negative value on error. * * NOTES: * if scan_devices() fails when called with 'op' == SCAN_OP_BUILD_DEVLIST, @@ -837,11 +841,12 @@ static int scan_devices(am7xxx_context *ctx, scan_op op, open_device_index, list[i], dev); - if (ret < 0) { + if (ret < 0) debug(ctx, "open_device failed\n"); - goto out; - } + /* exit the loop unconditionally after + * attempting to open the device + * requested by the user */ goto out; } current_index++;