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[Qemu-devel] [PATCH 15/16] os-posix: cleanup: Replace perror with error_


From: Ian Jackson
Subject: [Qemu-devel] [PATCH 15/16] os-posix: cleanup: Replace perror with error_report
Date: Thu, 19 Apr 2018 17:45:18 +0100

perror() is defined to fprintf(stderr,...).  HACKING says
fprintf(stderr,...) is wrong.  So perror() is too.

Signed-off-by: Ian Jackson <address@hidden>
CC: Paolo Bonzini <address@hidden>
CC: Markus Armbruster <address@hidden>
CC: Daniel P. Berrange <address@hidden>
CC: Michael Tokarev <address@hidden>
CC: Alistair Francis <address@hidden>
---
v7: New patch
---
 os-posix.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/os-posix.c b/os-posix.c
index d4cf466..0108028 100644
--- a/os-posix.c
+++ b/os-posix.c
@@ -125,7 +125,7 @@ void os_set_proc_name(const char *s)
     /* Could rewrite argv[0] too, but that's a bit more complicated.
        This simple way is enough for `top'. */
     if (prctl(PR_SET_NAME, name)) {
-        perror("unable to change process name");
+        error_report("unable to change process name: %s", strerror(errno));
         exit(1);
     }
 #else
@@ -247,7 +247,7 @@ static void change_root(void)
             exit(1);
         }
         if (chdir("/")) {
-            perror("not able to chdir to /");
+            error_report("not able to chdir to /: %s", strerror(errno));
             exit(1);
         }
     }
@@ -309,7 +309,7 @@ void os_setup_post(void)
 
     if (daemonize) {
         if (chdir("/")) {
-            perror("not able to chdir to /");
+            error_report("not able to chdir to /: %s", strerror(errno));
             exit(1);
         }
         TFR(fd = qemu_open("/dev/null", O_RDWR));
@@ -383,7 +383,7 @@ int os_mlock(void)
 
     ret = mlockall(MCL_CURRENT | MCL_FUTURE);
     if (ret < 0) {
-        perror("mlockall");
+        error_report("mlockall: %s", strerror(errno));
     }
 
     return ret;
-- 
2.1.4




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