fix possible memory leak if one of the kmalloc fail.

Signed-off-by: Vincent Hanquez <vincent@xensource.com>

diff --git a/linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c b/linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c
index 9228cb51900875478f920bce5b0512ee49a147ab..34d3399a8e2c0a2449d18b2d577e33d4273dae4e 100644 (file)
--- a/linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c
+++ b/linux-2.6-xen-sparse/drivers/xen/blkback/blkback.c
@@ -540,6 +540,9 @@ static int __init blkif_init(void)
        pending_vaddrs        = kmalloc(sizeof(pending_vaddrs[0]) *
                                        mmap_pages, GFP_KERNEL);
        if (!pending_reqs || !pending_grant_handles || !pending_vaddrs) {
+               kfree(pending_reqs);
+               kfree(pending_grant_handles);
+               kfree(pending_vaddrs);
                printk("%s: out of memory\n", __FUNCTION__);
                return -1;
        }