[PATCH] trace-cmd: Fix mmap error path in allocate_page_map()

[Vincent Donnefort <vincent.donnefort@xxxxxxx>]

A typo in allocate_page_map() led to not testing mmap failure and using
the defunct pointer as a valid one.

Signed-off-by: Vincent Donnefort <vincent.donnefort@xxxxxxx>

diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
index f9d09d2..2093a3d 100644
--- a/lib/trace-cmd/trace-input.c
+++ b/lib/trace-cmd/trace-input.c
@@ -1004,7 +1004,7 @@ static void *allocate_page_map(struct tracecmd_input *handle,
 	page_map->map = mmap(NULL, map_size, PROT_READ, MAP_PRIVATE,
 			 handle->fd, map_offset);
 
-	if (page->map == MAP_FAILED) {
+	if (page_map->map == MAP_FAILED) {
 		/* Try a smaller map */
 		map_size >>= 1;
 		if (map_size < handle->page_size) {
-- 
2.27.0