patch "usb: xhci: dbc: Don't free all memory with spinlock held" added to usb-linus

This is a note to let you know that I've just added the patch titled

usb: xhci: dbc: Don't free all memory with spinlock held

to my usb git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git
in the usb-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From 8867ea262196a6945c24a0fb739575af646ec0e9 Mon Sep 17 00:00:00 2001
From: Mathias Nyman <[email protected]>
Date: Fri, 22 Mar 2019 17:50:16 +0200
Subject: usb: xhci: dbc: Don't free all memory with spinlock held

The xhci debug capability (DbC) feature did its memory cleanup with spinlock held. dma_free_coherent() warns if called with interrupts disabled

move the memory cleanup outside the spinlock

---
 drivers/usb/host/xhci-dbgcap.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

index c78be578abb0..d932cc31711e 100644
@@ -516,7 +516,6 @@ static int xhci_do_dbc_stop(struct xhci_hcd *xhci)
 		return -1;
 
 	writel(0, &dbc->regs->control);
-	xhci_dbc_mem_cleanup(xhci);
 	dbc->state = DS_DISABLED;
 
 	return 0;

@@ -562,8 +561,10 @@ static void xhci_dbc_stop(struct xhci_hcd *xhci)
 	ret = xhci_do_dbc_stop(xhci);
 	spin_unlock_irqrestore(&dbc->lock, flags);
 
-	if (!ret)
+	if (!ret) {
+		xhci_dbc_mem_cleanup(xhci);
 		pm_runtime_put_sync(xhci_to_hcd(xhci)->self.controller);
+	}
 }
 
 static void

2.21.0