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authorPeter Maydell <peter.maydell@linaro.org>2017-07-20 17:52:48 +0100
committerPeter Maydell <peter.maydell@linaro.org>2017-07-20 17:52:48 +0100
commit4439e1f1563a36e3bad31e5d2327d500c1aea109 (patch)
tree95f672283775e50e0b3cd23d1f8052f384bfcb2e /hw
parent25d0233c1ac6cd14a15fcc834f1de3b179037b1d (diff)
parent121829cb2160e9cd82482c1542699fa589688106 (diff)
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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>
Diffstat (limited to 'hw')
-rw-r--r--hw/usb/bus.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/hw/usb/bus.c b/hw/usb/bus.c
index 5939b27..d910f84 100644
--- a/hw/usb/bus.c
+++ b/hw/usb/bus.c
@@ -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);