settings: Fix settings runtime read callback return value

fnde-ot · aescolar · commit bec05a5d7fac · 2019-12-12T13:22:27.000+01:00
The settings runtime read callback should return the actual length of
the data that has been read.

Signed-off-by: François Delawarde &lt;fnde@oticon.com&gt;
diff --git a/subsys/settings/src/settings_runtime.c b/subsys/settings/src/settings_runtime.c
@@ -20,7 +20,7 @@ static ssize_t settings_runtime_read_cb(void *cb_arg, void *data, size_t len)
 	struct read_cb_arg *arg = (struct read_cb_arg *)cb_arg;
 
 	memcpy(data, arg->data, MIN(arg->len, len));
-	return len;
+	return MIN(arg->len, len);
 }
 
 int settings_runtime_set(const char *name, void *data, size_t len)

Original file line number	Diff line number	Diff line change
`@@ -20,7 +20,7 @@ static ssize_t settings_runtime_read_cb(void cb_arg, void data, size_t len)`
`20`	`20`	`struct read_cb_arg arg = (struct read_cb_arg )cb_arg;`
`21`	`21`
`22`	`22`	`memcpy(data, arg->data, MIN(arg->len, len));`
`23`		`- return len;`
	`23`	`+ return MIN(arg->len, len);`
`24`	`24`	`}`
`25`	`25`
`26`	`26`	`int settings_runtime_set(const char name, void data, size_t len)`