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usb: f_fs: replace unnecessary goto with a return

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In ffs_epfile_io error label points to a return path which includes
a kfree(data) call.  However, at the beginning of the function data is
always NULL so some of the early ‘goto error’ can safely be replaced
with a trivial return statement.

Signed-off-by: Michal Nazarewicz <mina86@mina86.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
This commit is contained in:
Michal Nazarewicz 2016-01-04 20:58:12 +01:00 committed by Felipe Balbi
parent 3163c79efa
commit b3591f67b9
1 changed files with 8 additions and 16 deletions
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24
drivers/usb/gadget/function/f_fs.c
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@ -690,32 +690,24 @@ static ssize_t ffs_epfile_io(struct file *file, struct ffs_io_data *io_data)
int halt;
/* Are we still active? */
if (WARN_ON(epfile->ffs->state != FFS_ACTIVE)) {
ret = -ENODEV;
goto error;
}
if (WARN_ON(epfile->ffs->state != FFS_ACTIVE))
return -ENODEV;
/* Wait for endpoint to be enabled */
ep = epfile->ep;
if (!ep) {
if (file->f_flags & O_NONBLOCK) {
ret = -EAGAIN;
goto error;
}
if (file->f_flags & O_NONBLOCK)
return -EAGAIN;
ret = wait_event_interruptible(epfile->wait, (ep = epfile->ep));
if (ret) {
ret = -EINTR;
goto error;
}
if (ret)
return -EINTR;
}
/* Do we halt? */
halt = (!io_data->read == !epfile->in);
if (halt && epfile->isoc) {
ret = -EINVAL;
goto error;
}
if (halt && epfile->isoc)
return -EINVAL;
/* Allocate & copy */
if (!halt) {