A coccicheck run provided information like the following.
./drivers/usb/gadget/function/f_fs.c:3832:9-16:
WARNING: ERR_CAST can be used with data
Use ERR_CAST to fix this.
Signed-off-by: YueHaibing <yuehaibing@xxxxxxxxxx>
---
drivers/usb/gadget/function/f_fs.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/usb/gadget/function/f_fs.c b/drivers/usb/gadget/function/f_fs.c
index bf109191659a..61110ff52f49 100644
--- a/drivers/usb/gadget/function/f_fs.c
+++ b/drivers/usb/gadget/function/f_fs.c
@@ -3829,7 +3829,7 @@ static char *ffs_prepare_buffer(const char __user *buf, size_t len)
data = memdup_user(buf, len);
if (IS_ERR(data))
- return ERR_PTR(PTR_ERR(data));
+ return ERR_CAST(data);
pr_vdebug("Buffer from user space:\n");
ffs_dump_mem("", data, len);
--
2.17.1
