Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-24 21:54:01 +00:00
Code Issues Projects Releases Packages Wiki Activity

fs/fat: Fix pathnames using '..' that lead to the root directory

Browse source 
If we end up back in the root directory via a '..' directory entry, set
itr->is_root accordingly. Failing to do that gives spews like
"Invalid FAT entry" and being unable to access directory entries located
past the first cluster of the root directory.

Fixes: 8eafae209c ("fat/fs: convert to directory iterators")
Reviewed-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
This commit is contained in:
Tuomas Tynkkynen 2017-09-25 22:06:33 +03:00 committed by Tom Rini
parent edce588a45
commit 8df8731474
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
fs/fat/fat.c
View file

@ -710,13 +710,14 @@ static void fat_itr_child(fat_itr *itr, fat_itr *parent)
itr->fsdata = parent->fsdata;
if (clustnum > 0) {
itr->clust = clustnum;
itr->is_root = 0;
} else {
itr->clust = parent->fsdata->root_cluster;
itr->is_root = 1;
}
itr->dent = NULL;
itr->remaining = 0;
itr->last_cluster = 0;
itr->is_root = 0;
}
static void *next_cluster(fat_itr *itr)