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[Qemu-devel] [PULL 1/2] xhci: Fix possible side effect from assert()
From: |
Gerd Hoffmann |
Subject: |
[Qemu-devel] [PULL 1/2] xhci: Fix possible side effect from assert() |
Date: |
Wed, 20 Jul 2016 14:58:13 +0200 |
From: Alexey Kardashevskiy <address@hidden>
A static analysis tool called BEAM detected possible side effect from
assert() calling a helper which may change an XHCI ring after every call.
This moves xhci_ring_fetch() out of assert() so it will be called
with and without enabled debug.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
Message-id: address@hidden
Signed-off-by: Gerd Hoffmann <address@hidden>
---
hw/usb/hcd-xhci.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index 976bfb0..188f954 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -2201,7 +2201,9 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int
slotid,
xfer->trb_count = length;
for (i = 0; i < length; i++) {
- assert(xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL));
+ TRBType type;
+ type = xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL);
+ assert(type);
}
xfer->streamid = streamid;
--
1.8.3.1