6.12-stable review patch. If anyone has any objections, please let me know.
------------------
From: ZhangPeng <zhangpeng362@xxxxxxxxxx>
[ Upstream commit bed2cc482600296fe04edbc38005ba2851449c10 ]
The __filemap_get_folio() function returns error pointers.
It never returns NULL. So use IS_ERR() to check it.
Fixes: 1da86618bdce ("fs: Convert aops->write_begin to take a folio")
Signed-off-by: ZhangPeng <zhangpeng362@xxxxxxxxxx>
Acked-by: Johannes Berg <johannes@xxxxxxxxxxxxxxxx>
Signed-off-by: Richard Weinberger <richard@xxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/hostfs/hostfs_kern.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/fs/hostfs/hostfs_kern.c b/fs/hostfs/hostfs_kern.c
index 6d1cf2436ead6..084f6ed2dd7a6 100644
--- a/fs/hostfs/hostfs_kern.c
+++ b/fs/hostfs/hostfs_kern.c
@@ -471,8 +471,8 @@ static int hostfs_write_begin(struct file *file, struct address_space *mapping,
*foliop = __filemap_get_folio(mapping, index, FGP_WRITEBEGIN,
mapping_gfp_mask(mapping));
- if (!*foliop)
- return -ENOMEM;
+ if (IS_ERR(*foliop))
+ return PTR_ERR(*foliop);
return 0;
}
--
2.43.0
