#include #include #include #include #include "ioexact.h" extern volatile sig_atomic_t sigint; ssize_t read_exact(int fd, void *buf, size_t len, bool mayexit) { ssize_t num = 0, written; while (len > 0 && !sigint) { if ((written = read(fd, buf, len)) < 0) { if (errno == EAGAIN && num > 0) continue; if (mayexit) return -1; else continue; } if (!written) return 0; len -= written; buf += written; num += written; } return num; } ssize_t write_exact(int fd, void *buf, size_t len, bool mayexit) { ssize_t num = 0, written; while (len > 0 && !sigint) { if ((written = write(fd, buf, len)) < 0) { if (errno == EAGAIN && num > 0) continue; if (mayexit) return -1; else continue; } if (!written) return 0; len -= written; buf += written; num += written; } return num; } get'> net-next plumbingsTobias Klauser

path: root/include/dt-bindings/leds

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author	Johan Hovold <johan@kernel.org>	2017-01-30 11:26:38 +0100
committer	Jiri Kosina <jkosina@suse.cz>	2017-01-31 12:59:32 +0100
commit	7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
tree	cf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /net/ipv6/inet6_hashtables.c
parent	877a021e08ccb6434718c0cc781fdf943c884cc0 (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/ipv6/inet6_hashtables.c')