[PATCH 01/17] fs/squashfs: fix board hang-up when calling .exists()

Richard Genoud
2020-10-14T08:06:06Z

add missing squashfs function to prevent dangling or null pointers.
For exemple, when calling test [ -e somefile ], squashfs.exists may be
called.

Signed-off-by: Richard Genoud <richard.genoud@posteo.net>
---
fs/fs.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/fs/fs.c b/fs/fs.c
index 29ad4d1a695..fb27c910d4f 100644
--- a/fs/fs.c
+++ b/fs/fs.c
@@ -287,6 +287,7 @@ static struct fstype_info fstypes[] = {
{
.fstype = FS_TYPE_SQUASHFS,
.name = "squashfs",
+ .null_dev_desc_ok = false,
.probe = sqfs_probe,
.opendir = sqfs_opendir,
.readdir = sqfs_readdir,
@@ -295,6 +296,12 @@ static struct fstype_info fstypes[] = {
.size = sqfs_size,
.close = sqfs_close,
.closedir = sqfs_closedir,
+ .exists = fs_exists_unsupported,
+ .uuid = fs_uuid_unsupported,
+ .write = fs_write_unsupported,
+ .ln = fs_ln_unsupported,
+ .unlink = fs_unlink_unsupported,
+ .mkdir = fs_mkdir_unsupported,
},
#endif
{