From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755067Ab3AWKip (ORCPT ); Wed, 23 Jan 2013 05:38:45 -0500 Received: from bear.ext.ti.com ([192.94.94.41]:46586 "EHLO bear.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754740Ab3AWKie (ORCPT ); Wed, 23 Jan 2013 05:38:34 -0500 From: Roger Quadros To: CC: , , , , , , , , , , , Alan Stern , Subject: [PATCH v9 01/20] USB: ehci-omap: Don't free gpios that we didn't request Date: Wed, 23 Jan 2013 12:37:53 +0200 Message-ID: <1358937492-8129-2-git-send-email-rogerq@ti.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1358937492-8129-1-git-send-email-rogerq@ti.com> References: <1358937492-8129-1-git-send-email-rogerq@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This driver does not request any gpios so don't free them. Fixes L3 bus error on multiple modprobe/rmmod of ehci_hcd with ehci-omap in use. Without this patch, EHCI will break on repeated insmod/rmmod of ehci_hcd for all OMAP2+ platforms that use EHCI and set 'phy_reset = true' in usbhs_omap_board_data. i.e. board-3430sdp.c: .phy_reset = true, board-3630sdp.c: .phy_reset = true, board-am3517crane.c: .phy_reset = true, board-am3517evm.c: .phy_reset = true, board-cm-t3517.c: .phy_reset = true, board-cm-t35.c: .phy_reset = true, board-devkit8000.c: .phy_reset = true, board-igep0020.c: .phy_reset = true, board-igep0020.c: .phy_reset = true, board-omap3beagle.c: .phy_reset = true, board-omap3evm.c: .phy_reset = true, board-omap3pandora.c: .phy_reset = true, board-omap3stalker.c: .phy_reset = true, board-omap3touchbook.c: .phy_reset = true, board-omap4panda.c: .phy_reset = false, board-overo.c: .phy_reset = true, board-zoom.c: .phy_reset = true, CC: Alan Stern CC: Greg Kroah-Hartman CC: stable@vger.kernel.org Signed-off-by: Roger Quadros Reviewed-by: Felipe Balbi Acked-by: Alan Stern --- drivers/usb/host/ehci-omap.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index ac17a7c..e9d9b09 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -288,7 +288,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct usb_hcd *hcd = dev_get_drvdata(dev); - struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); @@ -298,13 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); - if (pdata->phy_reset) { - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_free(pdata->reset_gpio_port[0]); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_free(pdata->reset_gpio_port[1]); - } return 0; } -- 1.7.4.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: rogerq@ti.com (Roger Quadros) Date: Wed, 23 Jan 2013 12:37:53 +0200 Subject: [PATCH v9 01/20] USB: ehci-omap: Don't free gpios that we didn't request In-Reply-To: <1358937492-8129-1-git-send-email-rogerq@ti.com> References: <1358937492-8129-1-git-send-email-rogerq@ti.com> Message-ID: <1358937492-8129-2-git-send-email-rogerq@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org This driver does not request any gpios so don't free them. Fixes L3 bus error on multiple modprobe/rmmod of ehci_hcd with ehci-omap in use. Without this patch, EHCI will break on repeated insmod/rmmod of ehci_hcd for all OMAP2+ platforms that use EHCI and set 'phy_reset = true' in usbhs_omap_board_data. i.e. board-3430sdp.c: .phy_reset = true, board-3630sdp.c: .phy_reset = true, board-am3517crane.c: .phy_reset = true, board-am3517evm.c: .phy_reset = true, board-cm-t3517.c: .phy_reset = true, board-cm-t35.c: .phy_reset = true, board-devkit8000.c: .phy_reset = true, board-igep0020.c: .phy_reset = true, board-igep0020.c: .phy_reset = true, board-omap3beagle.c: .phy_reset = true, board-omap3evm.c: .phy_reset = true, board-omap3pandora.c: .phy_reset = true, board-omap3stalker.c: .phy_reset = true, board-omap3touchbook.c: .phy_reset = true, board-omap4panda.c: .phy_reset = false, board-overo.c: .phy_reset = true, board-zoom.c: .phy_reset = true, CC: Alan Stern CC: Greg Kroah-Hartman CC: stable at vger.kernel.org Signed-off-by: Roger Quadros Reviewed-by: Felipe Balbi Acked-by: Alan Stern --- drivers/usb/host/ehci-omap.c | 8 -------- 1 files changed, 0 insertions(+), 8 deletions(-) diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index ac17a7c..e9d9b09 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -288,7 +288,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) { struct device *dev = &pdev->dev; struct usb_hcd *hcd = dev_get_drvdata(dev); - struct ehci_hcd_omap_platform_data *pdata = dev->platform_data; usb_remove_hcd(hcd); disable_put_regulator(dev->platform_data); @@ -298,13 +297,6 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev) pm_runtime_put_sync(dev); pm_runtime_disable(dev); - if (pdata->phy_reset) { - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_free(pdata->reset_gpio_port[0]); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_free(pdata->reset_gpio_port[1]); - } return 0; } -- 1.7.4.1