From: Jiasheng Jiang <jiasheng@iscas.ac.cn>
To: narmstrong@baylibre.com, mchehab@kernel.org,
gregkh@linuxfoundation.org, khilman@baylibre.com,
jbrunet@baylibre.com, martin.blumenstingl@googlemail.com
Cc: linux-media@vger.kernel.org, linux-amlogic@lists.infradead.org,
linux-staging@lists.linux.dev,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Jiasheng Jiang <jiasheng@iscas.ac.cn>
Subject: [PATCH] media: meson: vdec: potential dereference of null pointer
Date: Thu, 9 Dec 2021 16:58:40 +0800 [thread overview]
Message-ID: <20211209085840.2081024-1-jiasheng@iscas.ac.cn> (raw)
he return value of kzalloc() needs to be checked.
To avoid use of null pointer in case of the failure of alloc.
Fixes: 876f123b8956 ("media: meson: vdec: bring up to compliance")
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
---
drivers/staging/media/meson/vdec/vdec_helpers.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/staging/media/meson/vdec/vdec_helpers.c b/drivers/staging/media/meson/vdec/vdec_helpers.c
index 7f07a9175815..025885fcfec6 100644
--- a/drivers/staging/media/meson/vdec/vdec_helpers.c
+++ b/drivers/staging/media/meson/vdec/vdec_helpers.c
@@ -234,6 +234,8 @@ void amvdec_add_ts(struct amvdec_session *sess, u64 ts,
unsigned long flags;
new_ts = kzalloc(sizeof(*new_ts), GFP_KERNEL);
+ if (!new_ts)
+ return;
new_ts->ts = ts;
new_ts->tc = tc;
new_ts->offset = offset;
--
2.25.1
next reply other threads:[~2021-12-09 8:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-09 8:58 Jiasheng Jiang [this message]
2021-12-09 11:58 ` [PATCH] media: meson: vdec: potential dereference of null pointer Hans Verkuil
2021-12-09 17:52 ` Neil Armstrong
2022-01-13 6:56 Jiasheng Jiang
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