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From 8254c87e00992f6b14472076f435cba52ad9ff9d Mon Sep 17 00:00:00 2001
From: Madalin Bucur <madalin.bucur@nxp.com>
Date: Thu, 31 Aug 2017 17:42:07 +0300
Subject: [PATCH] sdk_dpaa: avoid crashing on OOM
Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com>
---
drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 8 ++++++--
1 file changed, 6 insertions(+), 2 deletions(-)
--- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
@@ -100,8 +100,12 @@ static int _dpa_bp_add_8_bufs(const stru
* an entire cacheline for performance reasons.
*/
#ifndef CONFIG_PPC
- if (unlikely(dpaa_errata_a010022))
- new_buf = page_address(alloc_page(GFP_ATOMIC));
+ if (unlikely(dpaa_errata_a010022)) {
+ struct page *new_page = alloc_page(GFP_ATOMIC);
+ if (unlikely(!new_page))
+ goto netdev_alloc_failed;
+ new_buf = page_address(new_page);
+ }
else
#endif
new_buf = netdev_alloc_frag(SMP_CACHE_BYTES + DPA_BP_RAW_SIZE);
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