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usb: fixes for mtp and host. 

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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20180507-pull-request' into staging

usb: fixes for mtp and host.

# gpg: Signature made Mon 07 May 2018 10:44:26 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/usb-20180507-pull-request:
  usb-host: skip open on pending postload bh
  usb-mtp: Unconditionally check for the readonly bit
  usb-mtp: Add some NULL checks for issues pointed out by coverity

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2018-05-08 12:02:18 +01:00
parent 2fb513d3b1 3280ea8ede
commit 302a84e878
2 changed files with 15 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
hw/usb/dev-mtp.c
View File

@ -1446,8 +1446,7 @@ static void usb_mtp_command(MTPState *s, MTPControl *c)
if (o == NULL) {
usb_mtp_queue_result(s, RES_INVALID_OBJECT_HANDLE, c->trans,
0, 0, 0, 0);
}
if (o->format != FMT_ASSOCIATION) {
} else if (o->format != FMT_ASSOCIATION) {
usb_mtp_queue_result(s, RES_INVALID_PARENT_OBJECT, c->trans,
0, 0, 0, 0);
}
@ -1660,6 +1659,7 @@ static void usb_mtp_write_metadata(MTPState *s)
uint32_t next_handle = s->next_handle;
assert(!s->write_pending);
assert(p != NULL);
utf16_to_str(dataset->length, dataset->filename, filename);
@ -1838,7 +1838,7 @@ static void usb_mtp_handle_data(USBDevice *dev, USBPacket *p)
p->status = USB_RET_STALL;
return;
}
if (s->data_out && !s->data_out->first) {
if ((s->data_out != NULL) && !s->data_out->first) {
container_type = TYPE_DATA;
} else {
usb_packet_copy(p, &container, sizeof(container));
@ -1948,16 +1948,17 @@ static void usb_mtp_realize(USBDevice *dev, Error **errp)
return;
}
s->desc = strrchr(s->root, '/');
/* Mark store as RW */
if (!s->readonly) {
s->flags |= (1 << MTP_FLAG_WRITABLE);
}
if (s->desc && s->desc[0]) {
s->desc = g_strdup(s->desc + 1);
} else {
s->desc = g_strdup("none");
}
}
/* Mark store as RW */
if (!s->readonly) {
s->flags |= (1 << MTP_FLAG_WRITABLE);
}
}
static const VMStateDescription vmstate_usb_mtp = {

7
hw/usb/host-libusb.c
View File

@ -102,6 +102,7 @@ struct USBHostDevice {
/* callbacks & friends */
QEMUBH *bh_nodev;
QEMUBH *bh_postld;
bool bh_postld_pending;
Notifier exit;
/* request queues */
@ -870,6 +871,10 @@ static int usb_host_open(USBHostDevice *s, libusb_device *dev)
int rc;
Error *local_err = NULL;
if (s->bh_postld_pending) {
return -1;
}
trace_usb_host_open_started(bus_num, addr);
if (s->dh != NULL) {
@ -1528,6 +1533,7 @@ static void usb_host_post_load_bh(void *opaque)
if (udev->attached) {
usb_device_detach(udev);
}
dev->bh_postld_pending = false;
usb_host_auto_check(NULL);
}
@ -1539,6 +1545,7 @@ static int usb_host_post_load(void *opaque, int version_id)
dev->bh_postld = qemu_bh_new(usb_host_post_load_bh, dev);
}
qemu_bh_schedule(dev->bh_postld);
dev->bh_postld_pending = true;
return 0;
}