drivers: dio: add missing iounmap() in dio_init()

If kzalloc() fails, iounmap() need be called in error path. Signed-off-by: Yang Yingliang <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
wafgo · May 19, 2022 · 077f5d9 · 077f5d9
1 parent 1061013
commit 077f5d9
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/drivers/dio/dio.c b/drivers/dio/dio.c
@@ -216,8 +216,11 @@ static int __init dio_init(void)
 
 		/* Found a board, allocate it an entry in the list */
 		dev = kzalloc(sizeof(struct dio_dev), GFP_KERNEL);
-		if (!dev)
+		if (!dev) {
+			if (scode >= DIOII_SCBASE)
+				iounmap(va);
 			return -ENOMEM;
+		}
 
 		dev->bus = &dio_bus;
 		dev->dev.parent = &dio_bus.dev;