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Subject[PATCH] Nvmem - Fix possible NULL derefrence.
Date
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/nvmem/imx-ocotp.c | 5 +++++
1 file changed, 5 insertions(+)

diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index ac27b9b..150a117 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -99,6 +99,11 @@ static int imx_ocotp_probe(struct platform_device *pdev)
return PTR_ERR(priv->clk);

of_id = of_match_device(imx_ocotp_dt_ids, dev);
+ if (!of_id) {
+ dev_err(dev, "Error: No device match found\n");
+ return -ENODEV;
+ }
+
priv->nregs = (unsigned long)of_id->data;
imx_ocotp_nvmem_config.size = 4 * priv->nregs;
imx_ocotp_nvmem_config.dev = dev;
--
1.7.9.5
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