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hostfs: add lock to hostfs_rewinddir

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Signed-off-by: ligd <liguiding1@xiaomi.com>
This commit is contained in:
ligd 2021-11-30 21:43:09 +08:00 committed by Xiang Xiao
parent 89e2f00dad
commit b294303e41
1 changed files with 18 additions and 1 deletions
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19
fs/hostfs/hostfs.c
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@ -970,14 +970,30 @@ static int hostfs_readdir(FAR struct inode *mountpt,
static int hostfs_rewinddir(FAR struct inode *mountpt, static int hostfs_rewinddir(FAR struct inode *mountpt,
FAR struct fs_dirent_s *dir) FAR struct fs_dirent_s *dir)
{ {
FAR struct hostfs_mountpt_s *fs;
int ret;
/* Sanity checks */ /* Sanity checks */
DEBUGASSERT(mountpt != NULL && mountpt->i_private != NULL); DEBUGASSERT(mountpt != NULL && mountpt->i_private != NULL);
/* Recover our private data from the inode instance */
fs = mountpt->i_private;
/* Take the semaphore */
ret = hostfs_semtake(fs);
if (ret < 0)
{
return ret;
}
/* Call the host and let it do all the work */ /* Call the host and let it do all the work */
host_rewinddir(dir->u.hostfs.fs_dir); host_rewinddir(dir->u.hostfs.fs_dir);
hostfs_semgive(fs);
return OK; return OK;
} }
@ -997,7 +1013,8 @@ static int hostfs_bind(FAR struct inode *blkdriver, FAR const void *data,
{ {
FAR struct hostfs_mountpt_s *fs; FAR struct hostfs_mountpt_s *fs;
FAR char *options; FAR char *options;
char *ptr, *saveptr; char *saveptr;
char *ptr;
int len; int len;
int ret; int ret;