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exfatfs_dup: alloc new handle for dup fd

Browse Source 
VELAPLATFO-193

Change-Id: I4888b681a79fbcfbb06df19bed43180283b37a35
Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
This commit is contained in:
Jiuzhu Dong
2021-08-31 12:13:49 +08:00
parent c7bf3567c2
commit 73617a3812
1 changed files with 10 additions and 1 deletions
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fs/exfat/exfat_vfs.c
+10 -1
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@@ -588,6 +588,7 @@ static int exfatfs_dup(FAR const struct file *oldp, FAR struct file *newp)
{
FAR struct exfatfs_mountpt_s *fs;
FAR struct exfatfs_file_s *priv;
FAR struct exfatfs_file_s *newpriv;
FAR struct inode *inode;
int ret;
@@ -597,14 +598,22 @@ static int exfatfs_dup(FAR const struct file *oldp, FAR struct file *newp)
inode = oldp->f_inode;
fs = inode->i_private;
newpriv = kmm_malloc(sizeof(*newpriv));
if (newpriv == NULL)
{
return -ENOMEM;
}
ret = exfatfs_semtake(fs);
if (ret < 0)
{
kmm_free(newpriv);
return ret;
}
exfat_get_node(priv->node);
newp->f_priv = priv;
newpriv->node = priv->node;
newp->f_priv = newpriv;
exfatfs_semgive(fs);
return ret;