diff mbox series

[1/1] drivers/i2c: fix a potential null pointer dereference

Message ID 20250513123754.3041911-1-ruc_gongyuanjun@163.com
State New
Headers show
Series [1/1] drivers/i2c: fix a potential null pointer dereference | expand

Commit Message

Yuanjun Gong May 13, 2025, 12:37 p.m. UTC 
Add check to *priv to make sure the input *dev is not NULL,
and to avoid a potential null pointer dereference.

Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
---
 drivers/i2c/busses/i2c-nomadik.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index d2877e4cc28d..ebc600f3a7c8 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -968,6 +968,9 @@  static int nmk_i2c_runtime_resume(struct device *dev)
 	struct nmk_i2c_dev *priv = amba_get_drvdata(adev);
 	int ret;
 
+	if (!priv)
+		return -EINVAL;
+
 	ret = clk_prepare_enable(priv->clk);
 	if (ret) {
 		dev_err(dev, "can't prepare_enable clock\n");