/* * Copyright IBM Corporation, 2010 * Author Venkateswararao Jujjuri * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2.1 of the GNU Lesser General Public License * as published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * */ #include #include /** * p9_release_req_pages - Release pages after the transaction. */ void p9_release_pages(struct page **pages, int nr_pages) { int i; for (i = 0; i < nr_pages; i++) if (pages[i]) put_page(pages[i]); } EXPORT_SYMBOL(p9_release_pages); t.cgi/linux/net-next.git/'>net-next.git
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /net/ipv4/tcp_recovery.c
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/ipv4/tcp_recovery.c')