diff mbox series

[2/2] usb: xhci: fix ring expansion regression in 6.13-rc1

Message ID 20241217102122.2316814-3-mathias.nyman@linux.intel.com
State New
Headers show
Series xhci fixes for usb-linus | expand

Commit Message

Mathias Nyman Dec. 17, 2024, 10:21 a.m. UTC 
From: Niklas Neronin <niklas.neronin@linux.intel.com>

The source and destination rings were incorrectly assigned during the ring
linking process. The "source" ring, which contains the new segments,
was not spliced into the "destination" ring, leading to incorrect ring
expansion.

Fixes: fe688e500613 ("usb: xhci: refactor xhci_link_rings() to use source and destination rings")
Reported-by: Jeff Chua <jeff.chua.linux@gmail.com>
Closes: https://lore.kernel.org/lkml/CAAJw_ZtppNqC9XA=-WVQDr+vaAS=di7jo15CzSqONeX48H75MA@mail.gmail.com/
Signed-off-by: Niklas Neronin <niklas.neronin@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
---
 drivers/usb/host/xhci-mem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 15db90c54a45..92703efda1f7 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -436,7 +436,7 @@  int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring,
 			goto free_segments;
 	}
 
-	xhci_link_rings(xhci, ring, &new_ring);
+	xhci_link_rings(xhci, &new_ring, ring);
 	trace_xhci_ring_expansion(ring);
 	xhci_dbg_trace(xhci, trace_xhci_dbg_ring_expansion,
 			"ring expansion succeed, now has %d segments",