layerscape: add patches-5.4

[openwrt/staging/wigyori.git] / target / linux / layerscape / patches-5.4 / 701-net-0028-sdk_dpaa-avoid-crashing-on-OOM.patch

diff --git a/target/linux/layerscape/patches-5.4/701-net-0028-sdk_dpaa-avoid-crashing-on-OOM.patch b/target/linux/layerscape/patches-5.4/701-net-0028-sdk_dpaa-avoid-crashing-on-OOM.patch
new file mode 100644 (file)
index 0000000..3e42322
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0028-sdk_dpaa-avoid-crashing-on-OOM.patch
@@ -0,0 +1,27 @@
+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);