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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2008-02-25 16:54:37 -0500
committerTheodore Ts'o <tytso@mit.edu>2008-02-25 16:54:37 -0500
commitb35905c16ad6428551eb9e49525011bd2700cf56 (patch)
tree155ae1b76392b38a6079dcc5de15b123b3c20953 /fs/ext4/migrate.c
parent4cdeed861b5f797b3fa661eb331a6bd6ad669c6a (diff)
ext4: Fix memory and buffer head leak in callers to ext4_ext_find_extent()
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>
Diffstat (limited to 'fs/ext4/migrate.c')
-rw-r--r--fs/ext4/migrate.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 8c6c685b9d2..5c1e27de775 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -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;
}