From 67f68f977a12657028e866c013d43dd87320d210 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Wed, 12 Feb 2020 09:48:57 -0800 Subject: Revert "xhci: Fix memory leak when caching protocol extended capability PSI tables" This reverts commit fc57313d1017dd6b6f37a94e88daa8df54368ecc. Marek reports that it breaks things: This patch landed in today's linux-next (20200211) and causes NULL pointer dereference during second suspend/resume cycle on Samsung Exynos5422-based (arm 32bit) Odroid XU3lite board: A more complete fix will be added soon. Reported-by: Marek Szyprowski Fixes: fc57313d1017 ("xhci: Fix memory leak when caching protocol extended capability PSI tables") Cc: Paul Menzel Cc: Sajja Venkateswara Rao Cc: stable # v4.4+ Cc: Mathias Nyman Signed-off-by: Greg Kroah-Hartman --- drivers/usb/host/xhci.h | 14 +++----------- 1 file changed, 3 insertions(+), 11 deletions(-) (limited to 'drivers/usb/host/xhci.h') diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 3ecee10fdcdc..13d8838cd552 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1702,20 +1702,12 @@ struct xhci_bus_state { * Intel Lynx Point LP xHCI host. */ #define XHCI_MAX_REXIT_TIMEOUT_MS 20 -struct xhci_port_cap { - u32 *psi; /* array of protocol speed ID entries */ - u8 psi_count; - u8 psi_uid_count; - u8 maj_rev; - u8 min_rev; -}; struct xhci_port { __le32 __iomem *addr; int hw_portnum; int hcd_portnum; struct xhci_hub *rhub; - struct xhci_port_cap *port_cap; }; struct xhci_hub { @@ -1727,6 +1719,9 @@ struct xhci_hub { /* supported prococol extended capabiliy values */ u8 maj_rev; u8 min_rev; + u32 *psi; /* array of protocol speed ID entries */ + u8 psi_count; + u8 psi_uid_count; }; /* There is one xhci_hcd structure per controller */ @@ -1885,9 +1880,6 @@ struct xhci_hcd { /* cached usb2 extened protocol capabilites */ u32 *ext_caps; unsigned int num_ext_caps; - /* cached extended protocol port capabilities */ - struct xhci_port_cap *port_caps; - unsigned int num_port_caps; /* Compliance Mode Recovery Data */ struct timer_list comp_mode_recovery_timer; u32 port_status_u0; -- cgit v1.2.3