aboutsummaryrefslogtreecommitdiffstatshomepage
path: root/drivers/usb
diff options
context:
space:
mode:
authorLi Jun <jun.li@nxp.com>2020-08-21 12:15:47 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-08-23 17:12:13 +0200
commit0077b1b2c8d9ad5f7a08b62fb8524cdb9938388f (patch)
treee44accdc9aaf0c03238bfa455d2be053147ae1a5 /drivers/usb
parentusb: uas: Add quirk for PNY Pro Elite (diff)
downloadwireguard-linux-0077b1b2c8d9ad5f7a08b62fb8524cdb9938388f.tar.xz
wireguard-linux-0077b1b2c8d9ad5f7a08b62fb8524cdb9938388f.zip
usb: host: xhci: fix ep context print mismatch in debugfs
dci is 0 based and xhci_get_ep_ctx() will do ep index increment to get the ep context. [rename dci to ep_index -Mathias] Cc: stable <stable@vger.kernel.org> # v4.15+ Fixes: 02b6fdc2a153 ("usb: xhci: Add debugfs interface for xHCI driver") Signed-off-by: Li Jun <jun.li@nxp.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Link: https://lore.kernel.org/r/20200821091549.20556-2-mathias.nyman@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/usb')
-rw-r--r--drivers/usb/host/xhci-debugfs.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/usb/host/xhci-debugfs.c b/drivers/usb/host/xhci-debugfs.c
index 92e25a62fdb5..c88bffd68742 100644
--- a/drivers/usb/host/xhci-debugfs.c
+++ b/drivers/usb/host/xhci-debugfs.c
@@ -274,7 +274,7 @@ static int xhci_slot_context_show(struct seq_file *s, void *unused)
static int xhci_endpoint_context_show(struct seq_file *s, void *unused)
{
- int dci;
+ int ep_index;
dma_addr_t dma;
struct xhci_hcd *xhci;
struct xhci_ep_ctx *ep_ctx;
@@ -283,9 +283,9 @@ static int xhci_endpoint_context_show(struct seq_file *s, void *unused)
xhci = hcd_to_xhci(bus_to_hcd(dev->udev->bus));
- for (dci = 1; dci < 32; dci++) {
- ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, dci);
- dma = dev->out_ctx->dma + dci * CTX_SIZE(xhci->hcc_params);
+ for (ep_index = 0; ep_index < 31; ep_index++) {
+ ep_ctx = xhci_get_ep_ctx(xhci, dev->out_ctx, ep_index);
+ dma = dev->out_ctx->dma + (ep_index + 1) * CTX_SIZE(xhci->hcc_params);
seq_printf(s, "%pad: %s\n", &dma,
xhci_decode_ep_context(le32_to_cpu(ep_ctx->ep_info),
le32_to_cpu(ep_ctx->ep_info2),