[PATCH] perf: annotate: make it respect -i option.

[Wang Nan <wangnan0@huawei.com>]

There is a bug in perf annotate that it doesn't respect user provided
'-i'/'--input' option:

 # perf record ls
   [ perf record: Woken up 1 times to write data ]
   [ perf record: Captured and wrote 0.001 MB perf.data (8 samples) ]
 # mv ./perf.data ./perf.data.new
 # perf annotate -i ./perf.data.new  --stdio
   failed to open perf.data: No such file or directory  (try 'perf record' first)

This patch fix it by setting file path after option parsing, like
what 'perf report' does.

Signed-off-by: Wang Nan <wangnan0@huawei.com>
---
 tools/perf/builtin-annotate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 71bf745..929f83c 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -283,7 +283,6 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 		},
 	};
 	struct perf_data_file file = {
-		.path  = input_name,
 		.mode  = PERF_DATA_MODE_READ,
 	};
 	const struct option options[] = {
@@ -342,6 +341,7 @@ int cmd_annotate(int argc, const char **argv, const char *prefix __maybe_unused)
 
 	setup_browser(true);
 
+	file.path  = input_name,
 	annotate.session = perf_session__new(&file, false, &annotate.tool);
 	if (annotate.session == NULL)
 		return -1;
-- 
1.8.3.4