perf beauty ioctl cmd: The 'fd' arg is signed

It is possible to pass a negative number as the fd and that has to be
handled, so stop using 'unsigned int fd' in the ioctl syscall 'cmd'
beautifier.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Luis Cláudio Gonçalves <lclaudio@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-b7qwa0l19dswa09h3s41akfu@git.kernel.orgSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 0ec572f0
......@@ -175,7 +175,7 @@ static size_t ioctl__scnprintf_cmd(unsigned long cmd, char *bf, size_t size, boo
size_t syscall_arg__scnprintf_ioctl_cmd(char *bf, size_t size, struct syscall_arg *arg)
{
unsigned long cmd = arg->val;
unsigned int fd = syscall_arg__val(arg, 0);
int fd = syscall_arg__val(arg, 0);
struct file *file = thread__files_entry(arg->thread, fd);
if (file != NULL) {
......
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