Re: [Linux-cachefs] [PATCH v3] cachefiles: fix error return code in cachefiles_ondemand_copen()

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在 2022/8/25 21:58, Gao Xiang 写道:
On Thu, Aug 25, 2022 at 04:36:20PM +0300, Dan Carpenter wrote:
I spent a long time looking at this as well...  It's really inscrutable
code.  It would be more readable if we just spelled things out in the
most pedantic way possible:


Yeah, the following code looks much better. Ke, would you mind
sending a version like below instead?

OK, I will update it.

Thanks,
Gao Xiang

diff --git a/fs/cachefiles/ondemand.c b/fs/cachefiles/ondemand.c
index 1fee702d5529..7e1586bd5cf3 100644
--- a/fs/cachefiles/ondemand.c
+++ b/fs/cachefiles/ondemand.c
@@ -158,9 +158,13 @@ int cachefiles_ondemand_copen(struct cachefiles_cache *cache, char *args)
/* fail OPEN request if daemon reports an error */
  	if (size < 0) {
-		if (!IS_ERR_VALUE(size))
-			size = -EINVAL;
-		req->error = size;
+		if (!IS_ERR_VALUE(size)) {
+			req->error = -EINVAL;
+			ret = -EINVAL;
+		} else {
+			req->error = size;
+			ret = 0;
+		}
  		goto out;
  	}
--
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