From: Prasad J Pandit <pjp@fedoraproject.org>
Date: Wed, 12 Dec 2018 19:30:35 +0000 (+0530)
Subject: pvrdma: add uar_read routine
X-Git-Tag: v4.0.0-rc0~196^2~4
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=2aa86456fb938a11f2b7bd57c8643c213218681c;p=thirdparty%2Fqemu.git

pvrdma: add uar_read routine

Define skeleton 'uar_read' routine. Avoid NULL dereference.

Reported-by: Li Qiang <liq3ea@163.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
---

diff --git a/hw/rdma/vmw/pvrdma_main.c b/hw/rdma/vmw/pvrdma_main.c
index 64de16fb522..838ad8a9493 100644
--- a/hw/rdma/vmw/pvrdma_main.c
+++ b/hw/rdma/vmw/pvrdma_main.c
@@ -448,6 +448,11 @@ static const MemoryRegionOps regs_ops = {
     },
 };
 
+static uint64_t uar_read(void *opaque, hwaddr addr, unsigned size)
+{
+    return 0xffffffff;
+}
+
 static void uar_write(void *opaque, hwaddr addr, uint64_t val, unsigned size)
 {
     PVRDMADev *dev = opaque;
@@ -489,6 +494,7 @@ static void uar_write(void *opaque, hwaddr addr, uint64_t val, unsigned size)
 }
 
 static const MemoryRegionOps uar_ops = {
+    .read = uar_read,
     .write = uar_write,
     .endianness = DEVICE_LITTLE_ENDIAN,
     .impl = {