diff options
| -rw-r--r-- | drivers/usb/core/devio.c | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index ca948bbc388..a678186f218 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -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 @@ -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; } |