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IB/ipath: Check return value of lookup_one_len 

This fixes kernel.org bug 8003.

Signed-off-by: Bryan O'Sullivan <bryan.osullivan@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Bryan O'Sullivan 2007-03-21 15:18:14 -07:00 committed by Roland Dreier
parent e07832b662
commit fae8773b73
1 changed files with 15 additions and 1 deletions
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16
drivers/infiniband/hw/ipath/ipath_fs.c
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@ -451,12 +451,18 @@ bail:
return ret;
}
static void remove_file(struct dentry *parent, char *name)
static int remove_file(struct dentry *parent, char *name)
{
struct dentry *tmp;
int ret;
tmp = lookup_one_len(name, parent, strlen(name));
if (IS_ERR(tmp)) {
ret = PTR_ERR(tmp);
goto bail;
}
spin_lock(&dcache_lock);
spin_lock(&tmp->d_lock);
if (!(d_unhashed(tmp) && tmp->d_inode)) {
@ -469,6 +475,14 @@ static void remove_file(struct dentry *parent, char *name)
spin_unlock(&tmp->d_lock);
spin_unlock(&dcache_lock);
}
ret = 0;
bail:
/*
* We don't expect clients to care about the return value, but
* it's there if they need it.
*/
return ret;
}
static int remove_device_files(struct super_block *sb,