cgroups: fix build warning on GCC 7

GCC 7 appears to be clever enough to detect that transient_len is uninitialised but not that it won't be used despite [1]. Just initialise it to zero to stop the complaining, and allow LXC to build on openSUSE Leap. [1]: 34683042 ("cgroups: fix "uninitialized transient_len" warning") Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>

cgroups: fix build warning on GCC 7
fdb0b8ab · Aleksa Sarai · 9f6302e3 · fdb0b8ab
Unverified Commit fdb0b8ab authored Apr 03, 2020 by Aleksa Sarai
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cgfsng.c src/lxc/cgroups/cgfsng.c +1 -1

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--- a/src/lxc/cgroups/cgfsng.c
+++ b/src/lxc/cgroups/cgfsng.c
@@ -1360,7 +1360,7 @@ __cgfsng_ops static inline bool cgfsng_payload_create(struct cgroup_ops *ops,
 __cgfsng_ops static bool cgfsng_monitor_enter(struct cgroup_ops *ops,
 					      struct lxc_handler *handler)
 {
-	int monitor_len, transient_len;
+	int monitor_len, transient_len = 0;
 	char monitor[INTTYPE_TO_STRLEN(pid_t)],
 	    transient[INTTYPE_TO_STRLEN(pid_t)];