From: xkernel.wang@foxmail.com To: broonie@kernel.org, tiwai@suse.com, perex@perex.cz Cc: krzysztof.kozlowski@canonical.com, s.nawrocki@samsung.com, lgirdwood@gmail.com, alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, Xiaoke Wang <xkernel.wang@foxmail.com> Subject: [PATCH v2] ASoC: samsung: i2s: check the return value of kstrdup() Date: Mon, 14 Mar 2022 18:36:45 +0800 [thread overview] Message-ID: <tencent_EC21778DC383823CBC4069EA9F0B84943905@qq.com> (raw) From: Xiaoke Wang <xkernel.wang@foxmail.com> kstrdup() is a memory allocation function which can return NULL when some internal memory errors happen. It is better to check the return value of it to catch the error in time. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com> --- ChangeLog: v1->v2 update the mail list and attach the tag 'Reviewed-by'. sound/soc/samsung/i2s.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 309badc..70c8271 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -1349,6 +1349,10 @@ static int i2s_create_secondary_device(struct samsung_i2s_priv *priv) return -ENOMEM; pdev_sec->driver_override = kstrdup("samsung-i2s", GFP_KERNEL); + if (!pdev_sec->driver_override) { + platform_device_put(pdev_sec); + return -ENOMEM; + } ret = platform_device_add(pdev_sec); if (ret < 0) { --
WARNING: multiple messages have this Message-ID (diff)
From: xkernel.wang@foxmail.com To: broonie@kernel.org, tiwai@suse.com, perex@perex.cz Cc: alsa-devel@alsa-project.org, lgirdwood@gmail.com, krzysztof.kozlowski@canonical.com, Xiaoke Wang <xkernel.wang@foxmail.com>, linux-kernel@vger.kernel.org Subject: [PATCH v2] ASoC: samsung: i2s: check the return value of kstrdup() Date: Mon, 14 Mar 2022 18:36:45 +0800 [thread overview] Message-ID: <tencent_EC21778DC383823CBC4069EA9F0B84943905@qq.com> (raw) From: Xiaoke Wang <xkernel.wang@foxmail.com> kstrdup() is a memory allocation function which can return NULL when some internal memory errors happen. It is better to check the return value of it to catch the error in time. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com> Signed-off-by: Xiaoke Wang <xkernel.wang@foxmail.com> --- ChangeLog: v1->v2 update the mail list and attach the tag 'Reviewed-by'. sound/soc/samsung/i2s.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/soc/samsung/i2s.c b/sound/soc/samsung/i2s.c index 309badc..70c8271 100644 --- a/sound/soc/samsung/i2s.c +++ b/sound/soc/samsung/i2s.c @@ -1349,6 +1349,10 @@ static int i2s_create_secondary_device(struct samsung_i2s_priv *priv) return -ENOMEM; pdev_sec->driver_override = kstrdup("samsung-i2s", GFP_KERNEL); + if (!pdev_sec->driver_override) { + platform_device_put(pdev_sec); + return -ENOMEM; + } ret = platform_device_add(pdev_sec); if (ret < 0) { --
next reply other threads:[~2022-03-14 10:37 UTC|newest] Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-03-14 10:36 xkernel.wang [this message] 2022-03-14 10:36 ` [PATCH v2] ASoC: samsung: i2s: check the return value of kstrdup() xkernel.wang 2022-03-16 20:35 ` Mark Brown 2022-03-16 20:35 ` Mark Brown
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