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| author | Namhyung Kim <namhyung@gmail.com> | 2017-11-08 00:31:34 +0900 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2017-12-18 14:37:36 +0000 |
| commit | 5070570c9089b905dd9efae30ee4318033c6ccd6 (patch) | |
| tree | b6fc3720ab92442a4fd6fb15fb1998d179599771 /trace | |
| parent | 411ad78115ebeb3411cf4b7622784b93dfabe259 (diff) | |
| download | qemu-5070570c9089b905dd9efae30ee4318033c6ccd6.zip qemu-5070570c9089b905dd9efae30ee4318033c6ccd6.tar.gz qemu-5070570c9089b905dd9efae30ee4318033c6ccd6.tar.bz2 | |
trace: Simplify find_debugfs()
The return vale of find_debugfs() is 1 if it could find a mount point of
debugfs. It can be saved in the while loop instead of checking it again.
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'trace')
| -rw-r--r-- | trace/ftrace.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/trace/ftrace.c b/trace/ftrace.c index 7de104d..bfa38e7 100644 --- a/trace/ftrace.c +++ b/trace/ftrace.c @@ -19,6 +19,7 @@ static int find_debugfs(char *debugfs) { char type[100]; FILE *fp; + int ret = 0; fp = fopen("/proc/mounts", "r"); if (fp == NULL) { @@ -28,15 +29,13 @@ static int find_debugfs(char *debugfs) while (fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n", debugfs, type) == 2) { if (strcmp(type, "debugfs") == 0) { + ret = 1; break; } } fclose(fp); - if (strcmp(type, "debugfs") != 0) { - return 0; - } - return 1; + return ret; } bool ftrace_init(void) |