i2c: make i2c_unregister_device() ERR_PTR safe

Wolfram Sang · Wolfram Sang · commit 689f535843ac · 2019-08-29T20:38:11.000+02:00
We are moving towards returning ERR_PTRs when i2c_new_*_device() calls
fail. Make sure its counterpart for unregistering handles ERR_PTRs as
well.

Signed-off-by: Wolfram Sang &lt;wsa+renesas@sang-engineering.com&gt;
Reviewed-by: Geert Uytterhoeven &lt;geert+renesas@glider.be&gt;
Signed-off-by: Wolfram Sang &lt;wsa@the-dreams.de&gt;
diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
@@ -832,7 +832,7 @@ EXPORT_SYMBOL_GPL(i2c_new_device);
  */
 void i2c_unregister_device(struct i2c_client *client)
 {
-	if (!client)
+	if (IS_ERR_OR_NULL(client))
 		return;
 
 	if (client->dev.of_node) {

Original file line number	Diff line number	Diff line change
`@@ -832,7 +832,7 @@ EXPORT_SYMBOL_GPL(i2c_new_device);`
`832`	`832`	`*/`
`833`	`833`	`void i2c_unregister_device(struct i2c_client *client)`
`834`	`834`	`{`
`835`		`- if (!client)`
	`835`	`+ if (IS_ERR_OR_NULL(client))`
`836`	`836`	`return;`
`837`	`837`
`838`	`838`	`if (client->dev.of_node) {`