/* * LCD panel support for the Palm Zire71 * * Original version : Romain Goyet * Current version : Laurent Gonzalez * Modified for zire71 : Marek Vasut * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the * Free Software Foundation; either version 2 of the License, or (at your * option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include #include #include #include "omapfb.h" static int palmz71_panel_init(struct lcd_panel *panel, struct omapfb_device *fbdev) { return 0; } static void palmz71_panel_cleanup(struct lcd_panel *panel) { } static int palmz71_panel_enable(struct lcd_panel *panel) { return 0; } static void palmz71_panel_disable(struct lcd_panel *panel) { } static unsigned long palmz71_panel_get_caps(struct lcd_panel *panel) { return OMAPFB_CAPS_SET_BACKLIGHT; } struct lcd_panel palmz71_panel = { .name = "palmz71", .config = OMAP_LCDC_PANEL_TFT | OMAP_LCDC_INV_VSYNC | OMAP_LCDC_INV_HSYNC | OMAP_LCDC_HSVS_RISING_EDGE | OMAP_LCDC_HSVS_OPPOSITE, .data_lines = 16, .bpp = 16, .pixel_clock = 24000, .x_res = 320, .y_res = 320, .hsw = 4, .hfp = 8, .hbp = 28, .vsw = 1, .vfp = 8, .vbp = 7, .pcd = 0, .init = palmz71_panel_init, .cleanup = palmz71_panel_cleanup, .enable = palmz71_panel_enable, .disable = palmz71_panel_disable, .get_caps = palmz71_panel_get_caps, }; static int palmz71_panel_probe(struct platform_device *pdev) { omapfb_register_panel(&palmz71_panel); return 0; } static int palmz71_panel_remove(struct platform_device *pdev) { return 0; } static int palmz71_panel_suspend(struct platform_device *pdev, pm_message_t mesg) { return 0; } static int palmz71_panel_resume(struct platform_device *pdev) { return 0; } static struct platform_driver palmz71_panel_driver = { .probe = palmz71_panel_probe, .remove = palmz71_panel_remove, .suspend = palmz71_panel_suspend, .resume = palmz71_panel_resume, .driver = { .name = "lcd_palmz71", }, }; module_platform_driver(palmz71_panel_driver); s='path'>path: root/drivers/usb/mtu3
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authorAndrei Vagin <avagin@openvz.org>2017-01-04 19:28:14 -0800
committerEric W. Biederman <ebiederm@xmission.com>2017-01-10 13:34:56 +1300
commitadd7c65ca426b7a37184dd3d2172394e23d585d6 (patch)
tree28b08b519540041b06ed0ab0b1c005076b932e8e /drivers/usb/mtu3
parent75422726b0f717d67db3283c2eb5bc14fa2619c5 (diff)
pid: fix lockdep deadlock warning due to ucount_lock
========================================================= [ INFO: possible irq lock inversion dependency detected ] 4.10.0-rc2-00024-g4aecec9-dirty #118 Tainted: G W --------------------------------------------------------- swapper/1/0 just changed the state of lock: (&(&sighand->siglock)->rlock){-.....}, at: [<ffffffffbd0a1bc6>] __lock_task_sighand+0xb6/0x2c0 but this lock took another, HARDIRQ-unsafe lock in the past: (ucounts_lock){+.+...} and interrupts could create inverse lock ordering between them. other info that might help us debug this: Chain exists of: &(&sighand->siglock)->rlock --> &(&tty->ctrl_lock)->rlock --> ucounts_lock Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(ucounts_lock); local_irq_disable(); lock(&(&sighand->siglock)->rlock); lock(&(&tty->ctrl_lock)->rlock); <Interrupt> lock(&(&sighand->siglock)->rlock); *** DEADLOCK *** This patch removes a dependency between rlock and ucount_lock. Fixes: f333c700c610 ("pidns: Add a limit on the number of pid namespaces") Cc: stable@vger.kernel.org Signed-off-by: Andrei Vagin <avagin@openvz.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'drivers/usb/mtu3')