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authorPhilippe Mathieu-Daudé <philmd@redhat.com>2021-08-19 18:34:20 +0200
committerPeter Maydell <peter.maydell@linaro.org>2021-08-26 17:01:59 +0100
commit348ba7bede1513f7e5aba0b755380d2ff1720192 (patch)
tree2af7c68cd1709835b7d6760f11495337b1af4035 /hw/dma
parent34a3a71db619c46f2a9ab76257d296d9c8b43aeb (diff)
downloadfocaccia-qemu-348ba7bede1513f7e5aba0b755380d2ff1720192.tar.gz
focaccia-qemu-348ba7bede1513f7e5aba0b755380d2ff1720192.zip
hw/dma/xlnx_csu_dma: Run trivial checks early in realize()
If some property are not set, we'll return indicating a failure,
so it is pointless to allocate / initialize some fields too early.
Move the trivial checks earlier in realize().

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-id: 20210819163422.2863447-3-philmd@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Diffstat (limited to 'hw/dma')
-rw-r--r--hw/dma/xlnx_csu_dma.c10
1 files changed, 5 insertions, 5 deletions
diff --git a/hw/dma/xlnx_csu_dma.c b/hw/dma/xlnx_csu_dma.c
index 797b4fed8f..2d19f415ef 100644
--- a/hw/dma/xlnx_csu_dma.c
+++ b/hw/dma/xlnx_csu_dma.c
@@ -626,6 +626,11 @@ static void xlnx_csu_dma_realize(DeviceState *dev, Error **errp)
     XlnxCSUDMA *s = XLNX_CSU_DMA(dev);
     RegisterInfoArray *reg_array;
 
+    if (!s->is_dst && !s->tx_dev) {
+        error_setg(errp, "zynqmp.csu-dma: Stream not connected");
+        return;
+    }
+
     reg_array =
         register_init_block32(dev, xlnx_csu_dma_regs_info[!!s->is_dst],
                               XLNX_CSU_DMA_R_MAX,
@@ -640,11 +645,6 @@ static void xlnx_csu_dma_realize(DeviceState *dev, Error **errp)
     sysbus_init_mmio(SYS_BUS_DEVICE(dev), &s->iomem);
     sysbus_init_irq(SYS_BUS_DEVICE(dev), &s->irq);
 
-    if (!s->is_dst && !s->tx_dev) {
-        error_setg(errp, "zynqmp.csu-dma: Stream not connected");
-        return;
-    }
-
     s->src_timer = ptimer_init(xlnx_csu_dma_src_timeout_hit,
                                s, PTIMER_POLICY_DEFAULT);