USB: minor ehci xITD simplifications

Remove two (or one) conditional tests in per-urb isochronous
transfer setup code paths.

Signed-off-by: Karsten Wiese <fzu@wemgehoertderstaat.de>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/usb/host/ehci-sched.c b/drivers/usb/host/ehci-sched.c
index 38c606c..e3cfe0a 100644 (file)
--- a/drivers/usb/host/ehci-sched.c
+++ b/drivers/usb/host/ehci-sched.c
@@ -1181,21 +1181,18 @@ itd_urb_transaction (
                                        struct ehci_itd, itd_list);
                        list_del (&itd->itd_list);
                        itd_dma = itd->itd_dma;
-               } else
-                       itd = NULL;
-
-               if (!itd) {
+               } else {
                        spin_unlock_irqrestore (&ehci->lock, flags);
                        itd = dma_pool_alloc (ehci->itd_pool, mem_flags,
                                        &itd_dma);
                        spin_lock_irqsave (&ehci->lock, flags);
+                       if (!itd) {
+                               iso_sched_free(stream, sched);
+                               spin_unlock_irqrestore(&ehci->lock, flags);
+                               return -ENOMEM;
+                       }
                }
 
-               if (unlikely (NULL == itd)) {
-                       iso_sched_free (stream, sched);
-                       spin_unlock_irqrestore (&ehci->lock, flags);
-                       return -ENOMEM;
-               }
                memset (itd, 0, sizeof *itd);
                itd->itd_dma = itd_dma;
                list_add (&itd->itd_list, &sched->td_list);
@@ -1814,21 +1811,18 @@ sitd_urb_transaction (
                                         struct ehci_sitd, sitd_list);
                        list_del (&sitd->sitd_list);
                        sitd_dma = sitd->sitd_dma;
-               } else
-                       sitd = NULL;
-
-               if (!sitd) {
+               } else {
                        spin_unlock_irqrestore (&ehci->lock, flags);
                        sitd = dma_pool_alloc (ehci->sitd_pool, mem_flags,
                                        &sitd_dma);
                        spin_lock_irqsave (&ehci->lock, flags);
+                       if (!sitd) {
+                               iso_sched_free(stream, iso_sched);
+                               spin_unlock_irqrestore(&ehci->lock, flags);
+                               return -ENOMEM;
+                       }
                }
 
-               if (!sitd) {
-                       iso_sched_free (stream, iso_sched);
-                       spin_unlock_irqrestore (&ehci->lock, flags);
-                       return -ENOMEM;
-               }
                memset (sitd, 0, sizeof *sitd);
                sitd->sitd_dma = sitd_dma;
                list_add (&sitd->sitd_list, &iso_sched->td_list);