| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | From 8254c87e00992f6b14472076f435cba52ad9ff9d Mon Sep 17 00:00:00 2001 |
| 2 | From: Madalin Bucur <madalin.bucur@nxp.com> |
| 3 | Date: Thu, 31 Aug 2017 17:42:07 +0300 |
| 4 | Subject: [PATCH] sdk_dpaa: avoid crashing on OOM |
| 5 | |
| 6 | Signed-off-by: Madalin Bucur <madalin.bucur@nxp.com> |
| 7 | --- |
| 8 | drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c | 8 ++++++-- |
| 9 | 1 file changed, 6 insertions(+), 2 deletions(-) |
| 10 | |
| 11 | --- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c |
| 12 | +++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c |
| 13 | @@ -100,8 +100,12 @@ static int _dpa_bp_add_8_bufs(const stru |
| 14 | * an entire cacheline for performance reasons. |
| 15 | */ |
| 16 | #ifndef CONFIG_PPC |
| 17 | - if (unlikely(dpaa_errata_a010022)) |
| 18 | - new_buf = page_address(alloc_page(GFP_ATOMIC)); |
| 19 | + if (unlikely(dpaa_errata_a010022)) { |
| 20 | + struct page *new_page = alloc_page(GFP_ATOMIC); |
| 21 | + if (unlikely(!new_page)) |
| 22 | + goto netdev_alloc_failed; |
| 23 | + new_buf = page_address(new_page); |
| 24 | + } |
| 25 | else |
| 26 | #endif |
| 27 | new_buf = netdev_alloc_frag(SMP_CACHE_BYTES + DPA_BP_RAW_SIZE); |