Currently if ftdi device is removed, OpenOCD will stall forever.
Only kill -9 will help in this case.
This patch makes use of libusb timeout functions and
trying to break out of while loop if some error is detected.
[andreas.fritiofson@gmail.com]: Add missing retval check
Change-Id: I97506190e376026705f14ef9fe37dc811b99b3ac
Signed-off-by: Oleksij Rempel <linux@rempel-privat.de>
Signed-off-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
Reviewed-on: http://openocd.zylin.com/3419
Reviewed-by: Andreas Färber <afaerber@suse.de>
Tested-by: jenkins
libusb_fill_bulk_transfer(write_transfer, ctx->usb_dev, ctx->out_ep, ctx->write_buffer,
ctx->write_count, write_cb, &write_result, ctx->usb_write_timeout);
retval = libusb_submit_transfer(write_transfer);
libusb_fill_bulk_transfer(write_transfer, ctx->usb_dev, ctx->out_ep, ctx->write_buffer,
ctx->write_count, write_cb, &write_result, ctx->usb_write_timeout);
retval = libusb_submit_transfer(write_transfer);
+ if (retval != LIBUSB_SUCCESS)
+ goto error_check;
if (ctx->read_count) {
read_transfer = libusb_alloc_transfer(0);
if (ctx->read_count) {
read_transfer = libusb_alloc_transfer(0);
ctx->read_chunk_size, read_cb, &read_result,
ctx->usb_read_timeout);
retval = libusb_submit_transfer(read_transfer);
ctx->read_chunk_size, read_cb, &read_result,
ctx->usb_read_timeout);
retval = libusb_submit_transfer(read_transfer);
+ if (retval != LIBUSB_SUCCESS)
+ goto error_check;
}
/* Polling loop, more or less taken from libftdi */
while (!write_result.done || !read_result.done) {
}
/* Polling loop, more or less taken from libftdi */
while (!write_result.done || !read_result.done) {
- retval = libusb_handle_events(ctx->usb_ctx);
+ struct timeval timeout_usb;
+
+ timeout_usb.tv_sec = 1;
+ timeout_usb.tv_usec = 0;
+
+ retval = libusb_handle_events_timeout_completed(ctx->usb_ctx, &timeout_usb, NULL);
- if (retval != LIBUSB_SUCCESS && retval != LIBUSB_ERROR_INTERRUPTED) {
+ if (retval == LIBUSB_ERROR_NO_DEVICE || retval == LIBUSB_ERROR_INTERRUPTED)
+ break;
+
+ if (retval != LIBUSB_SUCCESS) {
libusb_cancel_transfer(write_transfer);
if (read_transfer)
libusb_cancel_transfer(read_transfer);
libusb_cancel_transfer(write_transfer);
if (read_transfer)
libusb_cancel_transfer(read_transfer);
- while (!write_result.done || !read_result.done)
- if (libusb_handle_events(ctx->usb_ctx) != LIBUSB_SUCCESS)
+ while (!write_result.done || !read_result.done) {
+ retval = libusb_handle_events_timeout_completed(ctx->usb_ctx,
+ &timeout_usb, NULL);
+ if (retval != LIBUSB_SUCCESS)
if (retval != LIBUSB_SUCCESS) {
LOG_ERROR("libusb_handle_events() failed with %s", libusb_error_name(retval));
retval = ERROR_FAIL;
if (retval != LIBUSB_SUCCESS) {
LOG_ERROR("libusb_handle_events() failed with %s", libusb_error_name(retval));
retval = ERROR_FAIL;
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