linux-kernel - [PATCH v2 02/35] powerpc: Add an allocation failure check

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Message-Id: <20190703162634.31953-1-huangfq.daxian@gmail.com>
Date:   Thu,  4 Jul 2019 00:26:34 +0800
From:   Fuqian Huang <huangfq.daxian@...il.com>
To:     unlisted-recipients:; (no To-header on input)
Cc:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Fuqian Huang <huangfq.daxian@...il.com>
Subject: [PATCH v2 02/35] powerpc: Add an allocation failure check

Add an allocation failure check.

Signed-off-by: Fuqian Huang <huangfq.daxian@...il.com>
---
Changes in v2:
  - Split into two patches

 arch/powerpc/platforms/pseries/dlpar.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 437a74173db2..7488e40f5e47 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -385,6 +385,8 @@ void queue_hotplug_event(struct pseries_hp_errorlog *hp_errlog)
 
 	hp_errlog_copy = kmalloc(sizeof(struct pseries_hp_errorlog),
 				 GFP_KERNEL);
+	if (!hp_errlog_copy)
+	      return;
 	memcpy(hp_errlog_copy, hp_errlog, sizeof(struct pseries_hp_errorlog));
 
 	work = kmalloc(sizeof(struct pseries_hp_work), GFP_KERNEL);
-- 
2.11.0