diff options
| author | Sarah Sharp <sarah.a.sharp@linux.intel.com> | 2012-10-25 13:44:12 -0700 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2013-01-03 03:33:05 +0000 |
| commit | bd8faba041e41352ff83c0f588c49b943dde00bc (patch) | |
| tree | 0104952335c8cab804fad50fb9a96eb7ca378379 | |
| parent | b8bc403446ea63e0285e50c1add8d7afc1e851d4 (diff) | |
xhci: Fix conditional check in bandwidth calculation.
commit 392a07ae3316f2b90b39ce41e66d6f6b5c95de90 upstream.
David reports that at drivers/usb/host/xhci.c:2257:
static bool xhci_is_sync_in_ep(unsigned int ep_type)
{
return (ep_type == ISOC_IN_EP || ep_type != INT_IN_EP);
}
The static analyser cppcheck says
[linux-3.7-rc2/drivers/usb/host/xhci.c:2257]: (style) Redundant condition: If ep_type == 5, the comparison ep_type != 7 is always true.
Maybe the original programmer intention was something like
static bool xhci_is_sync_in_ep(unsigned int ep_type)
{
return (ep_type == ISOC_IN_EP || ep_type == INT_IN_EP);
}
Fix this.
This patch should be backported to stable kernels as old as 3.2, that
contain the commit 2b69899934c63b7b9432568584fb4c4a2924f40c "xhci: USB
3.0 BW checking."
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
| -rw-r--r-- | drivers/usb/host/xhci.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index dab05d16163..a8a38dd09ec 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -2241,7 +2241,7 @@ static bool xhci_is_async_ep(unsigned int ep_type) static bool xhci_is_sync_in_ep(unsigned int ep_type) { - return (ep_type == ISOC_IN_EP || ep_type != INT_IN_EP); + return (ep_type == ISOC_IN_EP || ep_type == INT_IN_EP); } static unsigned int xhci_get_ss_bw_consumed(struct xhci_bw_info *ep_bw) |