net: gem: Check return value from memalign/malloc
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>
diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
index 14564e3..a817f2e 100644
--- a/drivers/net/zynq_gem.c
+++ b/drivers/net/zynq_gem.c
@@ -633,10 +633,16 @@
/* 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);