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ext4: Fix memory and buffer head leak in callers to ext4_ext_find_extent()

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The path variable returned via ext4_ext_find_extent is a kmalloc
variable and needs to be freeded.  It also contains a reference to
buffer_head which needs to be dropped.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
This commit is contained in:
Aneesh Kumar K.V
2008-02-25 16:54:37 -05:00
committed by Theodore Ts'o
parent 4cdeed861b
commit b35905c16a
3 changed files with 9 additions and 3 deletions
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5
fs/ext4/migrate.c
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@@ -43,6 +43,7 @@ static int finish_range(handle_t *handle, struct inode *inode,
if (IS_ERR(path)) {
retval = PTR_ERR(path);
path = NULL;
goto err_out;
}
@@ -74,6 +75,10 @@ static int finish_range(handle_t *handle, struct inode *inode,
}
retval = ext4_ext_insert_extent(handle, inode, path, &newext);
err_out:
if (path) {
ext4_ext_drop_refs(path);
kfree(path);
}
lb->first_pblock = 0;
return retval;
}