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Groups > linux.kernel > #1720761
| Path | csiph.com!news.mixmin.net!aioe.org!bofh.it!news.nic.it!robomod |
|---|---|
| From | Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
| Newsgroups | linux.kernel |
| Subject | [PATCH] ASoC: davinci-mcasp: check memory allocation failure |
| Date | Sun, 27 Aug 2017 08:50:01 +0200 |
| Message-ID | <uiZyp-40C-5@gated-at.bofh.it> (permalink) |
| X-Me-Helo | localhost.localdomain |
| X-Me-Auth | Y2hyaXN0b3BoZS5qYWlsbGV0QHdhbmFkb28uZnI= |
| X-Me-Date | Sun, 27 Aug 2017 08:49:17 +0200 |
| X-Me-IP | 86.196.182.67 |
| X-Mailer | git-send-email 2.11.0 |
| Sender | robomod@news.nic.it |
| List-ID | <linux-kernel.vger.kernel.org> |
| X-Mailing-List | linux-kernel@vger.kernel.org |
| Approved | robomod@news.nic.it |
| Lines | 27 |
| Organization | linux.* mail to news gateway |
| X-Original-Cc | alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org, Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
| X-Original-Date | Sun, 27 Aug 2017 08:46:50 +0200 |
| X-Original-Message-ID | <20170827064650.7562-1-christophe.jaillet@wanadoo.fr> |
| X-Original-Sender | linux-kernel-owner@vger.kernel.org |
| Xref | csiph.com linux.kernel:1720761 |
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Check memory allocation failures and return -ENOMEM in such cases, as
already done above for another memory allocation.
This avoids NULL pointers dereference.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
---
sound/soc/davinci/davinci-mcasp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/sound/soc/davinci/davinci-mcasp.c b/sound/soc/davinci/davinci-mcasp.c
index d486908d4e0e..f395bbc7c354 100644
--- a/sound/soc/davinci/davinci-mcasp.c
+++ b/sound/soc/davinci/davinci-mcasp.c
@@ -1851,6 +1851,10 @@ static int davinci_mcasp_probe(struct platform_device *pdev)
mcasp->context.xrsr_regs = devm_kzalloc(&pdev->dev,
sizeof(u32) * mcasp->num_serializer,
GFP_KERNEL);
+ if (!mcasp->context.xrsr_regs) {
+ ret = -ENOMEM;
+ goto err;
+ }
#endif
mcasp->serial_dir = pdata->serial_dir;
mcasp->version = pdata->version;
--
2.11.0
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[PATCH] ASoC: davinci-mcasp: check memory allocation failure Christophe JAILLET <christophe.jaillet@wanadoo.fr> - 2017-08-27 08:50 +0200 Applied "ASoC: davinci-mcasp: check memory allocation failure" to the asoc tree Mark Brown <broonie@kernel.org> - 2017-08-27 15:40 +0200
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