PrawnOS-nonfree/resources/BuildResources/patches-tested/kernel/5.x-dwc2/0052-Revert-usb-dwc2-host-Setting-qtd-to-NULL-after-freei.patch
Hal Emmerich 1cd8ae19a9 Add new workaround patch from ath9k devices
Add backported patched from 5.x from usb related fixes
Up kernel version to most recent lts
2019-08-21 17:31:41 -05:00

54 lines
1.8 KiB
Diff

From ad408a1596b45868e38d0504f2ec1d5fb06f17d4 Mon Sep 17 00:00:00 2001
From: Guenter Roeck <linux@roeck-us.net>
Date: Wed, 29 May 2019 13:54:43 -0700
Subject: [PATCH 52/53] Revert "usb: dwc2: host: Setting qtd to NULL after
freeing it"
This reverts commit b0d659022e5c96ee5c4bd62d22d3da2d66de306b.
The reverted commit does nothing but adding two unnecessary lines
of code. It sets a local variable to NULL in two functions, but
that variable is not used anywhere in the rest of those functions.
This is just confusing, so let's remove it.
Cc: Vardan Mikayelyan <mvardan@synopsys.com>
Cc: John Youn <johnyoun@synopsys.com>
Cc: Douglas Anderson <dianders@chromiun.org>
Cc: Felipe Balbi <felipe.balbi@linux.intel.com>
Acked-by: Minas Harutyunyan <hminas@synopsys.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
---
drivers/usb/dwc2/hcd.c | 1 -
drivers/usb/dwc2/hcd.h | 1 -
2 files changed, 2 deletions(-)
diff --git a/drivers/usb/dwc2/hcd.c b/drivers/usb/dwc2/hcd.c
index 4c78a390c958..ee144ff8af5b 100644
--- a/drivers/usb/dwc2/hcd.c
+++ b/drivers/usb/dwc2/hcd.c
@@ -4685,7 +4685,6 @@ static int _dwc2_hcd_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
spin_unlock_irqrestore(&hsotg->lock, flags);
urb->hcpriv = NULL;
kfree(qtd);
- qtd = NULL;
fail1:
if (qh_allocated) {
struct dwc2_qtd *qtd2, *qtd2_tmp;
diff --git a/drivers/usb/dwc2/hcd.h b/drivers/usb/dwc2/hcd.h
index ce6445a06588..8ca6d12a6f57 100644
--- a/drivers/usb/dwc2/hcd.h
+++ b/drivers/usb/dwc2/hcd.h
@@ -582,7 +582,6 @@ static inline void dwc2_hcd_qtd_unlink_and_free(struct dwc2_hsotg *hsotg,
{
list_del(&qtd->qtd_list_entry);
kfree(qtd);
- qtd = NULL;
}
/* Descriptor DMA support functions */
--
2.11.0