perf: Fix a build error with some GCC versions
authorEric Dumazet <eric.dumazet@gmail.com>
Fri, 8 Apr 2011 10:11:06 +0000 (12:11 +0200)
committerIngo Molnar <mingo@elte.hu>
Fri, 8 Apr 2011 15:40:21 +0000 (17:40 +0200)
Fix this:

 util/cgroup.c: In function ‘open_cgroup’:
 util/cgroup.c:16:16: error: ‘saved_ptr’ may be used uninitialized in this function
 util/cgroup.c:16:16: note: ‘saved_ptr’ was declared here

Apparently newer GCC (4.6) can figure out that this variable is properly
initialized - but some versions of GCC (such as 4.5.2) need help.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
tools/perf/util/cgroup.c

index 9fea755..96bee5c 100644 (file)
@@ -13,7 +13,7 @@ cgroupfs_find_mountpoint(char *buf, size_t maxlen)
 {
        FILE *fp;
        char mountpoint[MAX_PATH+1], tokens[MAX_PATH+1], type[MAX_PATH+1];
-       char *token, *saved_ptr;
+       char *token, *saved_ptr = NULL;
        int found = 0;
 
        fp = fopen("/proc/mounts", "r");