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[Qemu-devel] [PULL 1/4] trace: Simplify find_debugfs()
From: |
Stefan Hajnoczi |
Subject: |
[Qemu-devel] [PULL 1/4] trace: Simplify find_debugfs() |
Date: |
Mon, 18 Dec 2017 14:47:57 +0000 |
From: Namhyung Kim <address@hidden>
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 <address@hidden>
Signed-off-by: Stefan Hajnoczi <address@hidden>
---
trace/ftrace.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/trace/ftrace.c b/trace/ftrace.c
index 7de104deba..bfa38e71f0 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)
--
2.14.3