From: Insu Yun <wuninsu@gmail.com>
To: tj@kernel.org, linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: taesoo@gatech.edu, yeongjin.jang@gatech.edu, insu@gatech.edu,
changwoo@gatech.edu, Insu Yun <wuninsu@gmail.com>
Subject: [PATCH] ata: correctly handling failed allocation
Date: Tue, 29 Dec 2015 16:21:15 -0500 [thread overview]
Message-ID: <1451424075-19654-1-git-send-email-wuninsu@gmail.com> (raw)
Since kzalloc can be failed in memory pressure, return error when failed.
Signed-off-by: Insu Yun <wuninsu@gmail.com>
---
drivers/ata/sata_sx4.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/ata/sata_sx4.c b/drivers/ata/sata_sx4.c
index fab504f..48301cb 100644
--- a/drivers/ata/sata_sx4.c
+++ b/drivers/ata/sata_sx4.c
@@ -1396,6 +1396,8 @@ static unsigned int pdc20621_dimm_init(struct ata_host *host)
addr = 0;
length = size * 1024 * 1024;
buf = kzalloc(ECC_ERASE_BUF_SZ, GFP_KERNEL);
+ if (!buf)
+ return 1;
while (addr < length) {
pdc20621_put_to_dimm(host, buf, addr,
ECC_ERASE_BUF_SZ);
--
1.9.1
next reply other threads:[~2015-12-29 21:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-29 21:21 Insu Yun [this message]
2016-01-01 2:34 ` Tejun Heo
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