#include #include #include "str.h" #include "proc.h" #include "xmalloc.h" static size_t argv_len(char *const argv[]) { size_t len = 0; for (; argv && *argv; argv++) len++; return len; } int cpp_exec(char *in_file, char *out_file, size_t out_len, char *const argv[]) { size_t argc = 7 + argv_len(argv); char *tmp = xstrdup(in_file); char **cpp_argv; int ret = 0; char *base; unsigned int i = 0; base = basename(tmp); slprintf(out_file, out_len, "/tmp/.tmp-%u-%s", rand(), base); cpp_argv = xmalloc(argc * sizeof(char *)); cpp_argv[i++] = "cpp"; for (; argv && *argv; argv++, i++) cpp_argv[i] = *argv; cpp_argv[i++] = "-I"; cpp_argv[i++] = ETCDIRE_STRING; cpp_argv[i++] = "-o"; cpp_argv[i++] = out_file; cpp_argv[i++] = in_file; cpp_argv[i++] = NULL; if (proc_exec("cpp", cpp_argv)) ret = -1; xfree(cpp_argv); xfree(tmp); return ret; } d' value='5abf186a30a89d5b9c18a6bf93a2c192c9fd52f6'/> net-next plumbingsTobias Klauser
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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/dccp
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/dccp')