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usb: Fix build with newer gcc 

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Merge remote-tracking branch 'remotes/kraxel/tags/usb-20170720-pull-request' into staging

usb: Fix build with newer gcc

# gpg: Signature made Thu 20 Jul 2017 09:44:55 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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-20170720-pull-request:
  usb: Fix build with newer gcc

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Peter Maydell 2017-07-20 17:52:48 +01:00
parent 25d0233c1a 121829cb21
commit 4439e1f156
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
hw/usb/bus.c
View File

@ -407,8 +407,10 @@ void usb_register_companion(const char *masterbus, USBPort *ports[],
void usb_port_location(USBPort *downstream, USBPort *upstream, int portnr)
{
if (upstream) {
snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
upstream->path, portnr);
int l = snprintf(downstream->path, sizeof(downstream->path), "%s.%d",
upstream->path, portnr);
/* Max string is nn.nn.nn.nn.nn, which fits in 16 bytes */
assert(l < sizeof(downstream->path));
downstream->hubcount = upstream->hubcount + 1;
} else {
snprintf(downstream->path, sizeof(downstream->path), "%d", portnr);