From 44dd4196806ef015e7df3c671ca986b0b5ca0f73 Mon Sep 17 00:00:00 2001 From: Bandan Date: Fri, 7 Sep 2018 18:08:49 -0400 Subject: [PATCH] usb-mtp: fix error conditions for write operation Return STORE_FULL if we can't write all the bytes but return incomplete transfer if data received is less then what was specified in the metadata. Also, use d->offset as the file size which is valid for all file sizes. Signed-off-by: Bandan Message-id: 20180907220851.9658-2-bsd@redhat.com Signed-off-by: Gerd Hoffmann --- hw/usb/dev-mtp.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/hw/usb/dev-mtp.c b/hw/usb/dev-mtp.c index 3fdc4b0da1..15edf3bb82 100644 --- a/hw/usb/dev-mtp.c +++ b/hw/usb/dev-mtp.c @@ -1665,13 +1665,14 @@ static void usb_mtp_write_data(MTPState *s) goto success; } - rc = write_retry(d->fd, d->data, s->dataset.size); - if (!rc) { + rc = write_retry(d->fd, d->data, d->offset); + if (rc != d->offset) { usb_mtp_queue_result(s, RES_STORE_FULL, d->trans, 0, 0, 0, 0); goto done; } - if (rc != s->dataset.size) { + /* Only for < 4G file sizes */ + if (s->dataset.size != 0xFFFFFFFF && rc != s->dataset.size) { usb_mtp_queue_result(s, RES_INCOMPLETE_TRANSFER, d->trans, 0, 0, 0, 0); goto done; -- 2.11.4.GIT