/* * usage.c * * Various reporting routines. * Originally copied from GIT source. * * Copyright (C) Linus Torvalds, 2005 */ #include "util.h" #include "debug.h" static void report(const char *prefix, const char *err, va_list params) { char msg[1024]; vsnprintf(msg, sizeof(msg), err, params); fprintf(stderr, " %s%s\n", prefix, msg); } static NORETURN void usage_builtin(const char *err) { fprintf(stderr, "\n Usage: %s\n", err); exit(129); } static NORETURN void die_builtin(const char *err, va_list params) { report(" Fatal: ", err, params); exit(128); } static void error_builtin(const char *err, va_list params) { report(" Error: ", err, params); } static void warn_builtin(const char *warn, va_list params) { report(" Warning: ", warn, params); } /* If we are in a dlopen()ed .so write to a global variable would segfault * (ugh), so keep things static. */ static void (*usage_routine)(const char *err) NORETURN = usage_builtin; static void (*error_routine)(const char *err, va_list params) = error_builtin; static void (*warn_routine)(const char *err, va_list params) = warn_builtin; void set_warning_routine(void (*routine)(const char *err, va_list params)) { warn_routine = routine; } void usage(const char *err) { usage_routine(err); } void die(const char *err, ...) { va_list params; va_start(params, err); die_builtin(err, params); va_end(params); } int error(const char *err, ...) { va_list params; va_start(params, err); error_routine(err, params); va_end(params); return -1; } void warning(const char *warn, ...) { va_list params; va_start(params, warn); warn_routine(warn, params); va_end(params); } t.git/log/net/can'>logtreecommitdiff
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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/can
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/can')