Merge with mainline to remove plat-omap/Kconfig conflict

Conflicts:
	arch/arm/plat-omap/Kconfig

1 files changed, 30 insertions, 18 deletions

diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6e8bcdfd23b4..a678186f218f 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1312,9 +1312,9 @@ static int processcompl(struct async *as, void __user * __user *arg)
         void __user *addr = as->userurb;
         unsigned int i;
 
-        if (as->userbuffer)
+        if (as->userbuffer && urb->actual_length)
                 if (copy_to_user(as->userbuffer, urb->transfer_buffer,
-                                 urb->transfer_buffer_length))
+                                 urb->actual_length))
                         goto err_out;
         if (put_user(as->status, &userurb->status))
                 goto err_out;
@@ -1334,14 +1334,11 @@ static int processcompl(struct async *as, void __user * __user *arg)
                 }
         }
 
-        free_async(as);
-
         if (put_user(addr, (void __user * __user *)arg))
                 return -EFAULT;
         return 0;
 
 err_out:
-        free_async(as);
         return -EFAULT;
 }
 
@@ -1371,8 +1368,11 @@ static struct async *reap_as(struct dev_state *ps)
 static int proc_reapurb(struct dev_state *ps, void __user *arg)
 {
         struct async *as = reap_as(ps);
-        if (as)
-                return processcompl(as, (void __user * __user *)arg);
+        if (as) {
+                int retval = processcompl(as, (void __user * __user *)arg);
+                free_async(as);
+                return retval;
+        }
         if (signal_pending(current))
                 return -EINTR;
         return -EIO;
@@ -1380,11 +1380,16 @@ static int proc_reapurb(struct dev_state *ps, void __user *arg)
 
 static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
 {
+        int retval;
         struct async *as;
 
-        if (!(as = async_getcompleted(ps)))
-                return -EAGAIN;
-        return processcompl(as, (void __user * __user *)arg);
+        as = async_getcompleted(ps);
+        retval = -EAGAIN;
+        if (as) {
+                retval = processcompl(as, (void __user * __user *)arg);
+                free_async(as);
+        }
+        return retval;
 }
 
 #ifdef CONFIG_COMPAT
@@ -1475,9 +1480,9 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
         void __user *addr = as->userurb;
         unsigned int i;
 
-        if (as->userbuffer)
+        if (as->userbuffer && urb->actual_length)
                 if (copy_to_user(as->userbuffer, urb->transfer_buffer,
-                                 urb->transfer_buffer_length))
+                                 urb->actual_length))
                         return -EFAULT;
         if (put_user(as->status, &userurb->status))
                 return -EFAULT;
@@ -1497,7 +1502,6 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
                 }
         }
 
-        free_async(as);
         if (put_user(ptr_to_compat(addr), (u32 __user *)arg))
                 return -EFAULT;
         return 0;
@@ -1506,8 +1510,11 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
 static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
 {
         struct async *as = reap_as(ps);
-        if (as)
-                return processcompl_compat(as, (void __user * __user *)arg);
+        if (as) {
+                int retval = processcompl_compat(as, (void __user * __user *)arg);
+                free_async(as);
+                return retval;
+        }
         if (signal_pending(current))
                 return -EINTR;
         return -EIO;
@@ -1515,11 +1522,16 @@ static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
 
 static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg)
 {
+        int retval;
         struct async *as;
 
-        if (!(as = async_getcompleted(ps)))
-                return -EAGAIN;
-        return processcompl_compat(as, (void __user * __user *)arg);
+        retval = -EAGAIN;
+        as = async_getcompleted(ps);
+        if (as) {
+                retval = processcompl_compat(as, (void __user * __user *)arg);
+                free_async(as);
+        }
+        return retval;
 }