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net: gem: Check return value from memalign/malloc

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Functions can return NULL in case of error that's why checking return
value is needed.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Michal Simek 2018-06-13 15:20:35 +02:00 • committed by Joe Hershberger
parent 7674b64d78
commit 5b2c9a6ce3
1 changed files with 6 additions and 0 deletions
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6
drivers/net/zynq_gem.c
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@ -633,10 +633,16 @@ static int zynq_gem_probe(struct udevice *dev)
/* Align rxbuffers to ARCH_DMA_MINALIGN */ /* Align rxbuffers to ARCH_DMA_MINALIGN */
priv->rxbuffers = memalign(ARCH_DMA_MINALIGN, RX_BUF * PKTSIZE_ALIGN); priv->rxbuffers = memalign(ARCH_DMA_MINALIGN, RX_BUF * PKTSIZE_ALIGN);
if (!priv->rxbuffers)
return -ENOMEM;
memset(priv->rxbuffers, 0, RX_BUF * PKTSIZE_ALIGN); memset(priv->rxbuffers, 0, RX_BUF * PKTSIZE_ALIGN);
/* Align bd_space to MMU_SECTION_SHIFT */ /* Align bd_space to MMU_SECTION_SHIFT */
bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE); bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
if (!bd_space)
return -ENOMEM;
mmu_set_region_dcache_behaviour((phys_addr_t)bd_space, mmu_set_region_dcache_behaviour((phys_addr_t)bd_space,
BD_SPACE, DCACHE_OFF); BD_SPACE, DCACHE_OFF);