diff mbox series

[1/3] usb: host: xhci: fix ep context print mismatch in debugfs

Message ID 20200821091549.20556-2-mathias.nyman@linux.intel.com (mailing list archive)
State Mainlined
Commit 0077b1b2c8d9ad5f7a08b62fb8524cdb9938388f
Headers show
Series xhci fixes for usb-linus | expand

Commit Message

Mathias Nyman Aug. 21, 2020, 9:15 a.m. UTC 
From: Li Jun <jun.li@nxp.com>

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>
---
 drivers/usb/host/xhci-debugfs.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)
diff mbox series

Patch

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),