[PATCH] ramfs: fix mount source show for ramfs

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ramfs_parse_param does not parse key "source", and will convert
-ENOPARAM to 0. This will skip vfs_parse_fs_param_source in
vfs_parse_fs_param, which lead always "none" mount source for ramfs. Fix
it by parse "source" in ramfs_parse_param.

Signed-off-by: yangerkun <yangerkun@xxxxxxxxxx>
---
 fs/ramfs/inode.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c
index 65e7e56005b8..0d7f5f655fd8 100644
--- a/fs/ramfs/inode.c
+++ b/fs/ramfs/inode.c
@@ -202,6 +202,10 @@ static int ramfs_parse_param(struct fs_context *fc, struct fs_parameter *param)
 	struct ramfs_fs_info *fsi = fc->s_fs_info;
 	int opt;
 
+	opt = vfs_parse_fs_param_source(fc, param);
+	if (opt != -ENOPARAM)
+		return opt;
+
 	opt = fs_parse(fc, ramfs_fs_parameters, param, &result);
 	if (opt < 0) {
 		/*
-- 
2.31.1




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