[PATCH 1/4] usb: xhci: dbc: Simplify error handling in 'xhci_dbc_alloc_requests()'

[Mathias Nyman]

From: Christophe JAILLET <christophe.jail...@wanadoo.fr>

If the 'kmalloc()' fails, we need to undo the previous
'dbc_alloc_request()' call.

Because of the more similar function name, it is more logical to use
'dbc_free_request()' instead of 'xhci_dbc_free_req()'.

Both are equivalent here because:
 static void xhci_dbc_free_req(struct dbc_ep *dep, struct dbc_request *req)
 {
        kfree(req->buf);
        dbc_free_request(dep, req);
 }
and 'req->buf' is known to be NULL at this point

Signed-off-by: Christophe JAILLET <christophe.jail...@wanadoo.fr>
Signed-off-by: Mathias Nyman <mathias.ny...@linux.intel.com>
---
 drivers/usb/host/xhci-dbgtty.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci-dbgtty.c b/drivers/usb/host/xhci-dbgtty.c
index aff79ff5aba4..845939f8a0b8 100644
--- a/drivers/usb/host/xhci-dbgtty.c
+++ b/drivers/usb/host/xhci-dbgtty.c
@@ -146,7 +146,7 @@ xhci_dbc_alloc_requests(struct dbc_ep *dep, struct 
list_head *head,
                req->length = DBC_MAX_PACKET;
                req->buf = kmalloc(req->length, GFP_KERNEL);
                if (!req->buf) {
-                       xhci_dbc_free_req(dep, req);
+                       dbc_free_request(dep, req);
                        break;
                }
 
-- 
2.7.4