dwc2 USB controller hangs with lan78xx

[u-boot] / drivers / net / zynq_gem.c

diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index d1436807ffb9012a9958a76fd841fe110bf54e6d..a817f2e5d69ba247430a1f6e7316d0341d4d7941 100644 (file)
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -244,7 +244,7 @@ static int phywrite(struct zynq_gem_priv *priv, u32 phy_addr,
 static int phy_detection(struct udevice *dev)
 {
        int i;
-       u16 phyreg;
+       u16 phyreg = 0;
        struct zynq_gem_priv *priv = dev->priv;
 
        if (priv->phyaddr != -1) {
@@ -633,10 +633,16 @@ static int zynq_gem_probe(struct udevice *dev)
 
        /* Align rxbuffers to ARCH_DMA_MINALIGN */
        priv->rxbuffers = memalign(ARCH_DMA_MINALIGN, RX_BUF * PKTSIZE_ALIGN);
+       if (!priv->rxbuffers)
+               return -ENOMEM;
+
        memset(priv->rxbuffers, 0, RX_BUF * PKTSIZE_ALIGN);
 
        /* Align bd_space to MMU_SECTION_SHIFT */
        bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
+       if (!bd_space)
+               return -ENOMEM;
+
        mmu_set_region_dcache_behaviour((phys_addr_t)bd_space,
                                        BD_SPACE, DCACHE_OFF);