From: Shailendra Verma <shailendra.v@samsung.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Fabio Estevam <fabio.estevam@nxp.com>,
Marek Vasut <marex@denx.de>,
linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
p.shailesh@samsung.com, ashish.kalra@samsung.com,
Shailendra Verma <shailendra.v@samsung.com>,
Shailendra Verma <shailendra.capricorn@gmail.com>
Subject: [PATCH] Mmc: host - Fix possible NULL derefrence.
Date: Mon, 30 Jan 2017 10:18:18 +0530 [thread overview]
Message-ID: <1485751698-29036-1-git-send-email-shailendra.v@samsung.com> (raw)
In-Reply-To: <CGME20170130044838epcas1p43a1c58ae970b39909cfb67b2aa619a88@epcas1p4.samsung.com>
of_match_device could return NULL, and so can cause a NULL
pointer dereference later.
Signed-off-by: Shailendra Verma <shailendra.v@samsung.com>
---
drivers/mmc/host/mxs-mmc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 44ecebd..d12a5b7 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -581,6 +581,11 @@ static int mxs_mmc_probe(struct platform_device *pdev)
struct regulator *reg_vmmc;
struct mxs_ssp *ssp;
+ if (!of_id) {
+ dev_err(&pdev->dev, "Error: No device match found\n");
+ return -ENODEV;
+ }
+
irq_err = platform_get_irq(pdev, 0);
if (irq_err < 0)
return irq_err;
--
1.7.9.5
next parent reply other threads:[~2017-01-30 4:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20170130044838epcas1p43a1c58ae970b39909cfb67b2aa619a88@epcas1p4.samsung.com>
2017-01-30 4:48 ` Shailendra Verma [this message]
2017-01-30 12:12 ` Marek Vasut
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