[S] Change in flashrom[master]: dirtyjtag: Use owned libusb context

[Jean THOMAS (Code Review)]

Jean THOMAS has uploaded this change for review. ( https://review.coreboot.org/c/flashrom/+/67898 )

Change subject: dirtyjtag: Use owned libusb context
......................................................................

dirtyjtag: Use owned libusb context

Change-Id: I940646d8454bc4ea6cfe263c87ce1f150642988d
Signed-off-by: Jean THOMAS 
---
M dirtyjtag_spi.c
1 file changed, 19 insertions(+), 7 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/98/67898/1

diff --git a/dirtyjtag_spi.c b/dirtyjtag_spi.c
index 6c5fc72..8fdac00 100644
--- a/dirtyjtag_spi.c
+++ b/dirtyjtag_spi.c
@@ -26,6 +26,7 @@
 #include "programmer.h"

struct dirtyjtag_spi_data {
+	struct libusb_context *libusb_ctx;
    struct libusb_device_handle *libusb_handle;
    enum {
    	DJTAG1,
@@ -109,6 +110,7 @@
 {
    struct dirtyjtag_spi_data *djtag_data = (struct dirtyjtag_spi_data*)data;
    libusb_close(djtag_data->libusb_handle);
+	libusb_exit(djtag_data->libusb_ctx);
    free(data);
    return 0;
 }
@@ -191,7 +193,13 @@
    struct libusb_device_handle *handle = NULL;
    struct dirtyjtag_spi_data *djtag_data = NULL;

-	int ret = libusb_init(NULL);
+	djtag_data = calloc(1, sizeof(struct dirtyjtag_spi_data));
+	if (djtag_data == NULL) {
+		msg_perr("%s: failed to allocate internal driver data structure\n", __func__);
+		goto cleanup;
+	}
+
+	int ret = libusb_init(&djtag_data->libusb_ctx);
    if (ret < 0) {
    	msg_perr("%s: couldn't initialize libusb!\n", __func__);
    	return -1;
@@ -223,12 +231,6 @@
    	goto cleanup;
    }

-	djtag_data = calloc(1, sizeof(struct dirtyjtag_spi_data));
-	if (djtag_data == NULL) {
-		msg_perr("%s: failed to allocate internal driver data structure\n", __func__);
-		goto cleanup;
-	}
-
    djtag_data->libusb_handle = handle;

unsigned long int freq = 100;