From: Bart Van Assche <bvanassche@acm.org>
Date: Sun, 13 Nov 2022 23:10:10 +0000 (-0800)
Subject: os/os.h: Improve cpus_configured()
X-Git-Tag: fio-3.34~104^2
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=192cdbe2e4fc521aa6c90a6ff4ac62145be60dbb;p=fio.git

os/os.h: Improve cpus_configured()

Fix the following Coverity complaint:

1. negative_return: Calling sysconf, which might return a negative value.
2. return_negative_fn: Returning the return value of sysconf, which might be negative.

Signed-off-by: Bart Van Assche <bvanassche@acm.org>
---

diff --git a/os/os.h b/os/os.h
index a6fde1fd..c428260c 100644
--- a/os/os.h
+++ b/os/os.h
@@ -355,7 +355,9 @@ static inline unsigned long long get_fs_free_size(const char *path)
 #ifndef FIO_HAVE_CPU_CONF_SYSCONF
 static inline unsigned int cpus_configured(void)
 {
-	return sysconf(_SC_NPROCESSORS_CONF);
+	int nr_cpus = sysconf(_SC_NPROCESSORS_CONF);
+
+	return nr_cpus >= 1 ? nr_cpus : 1;
 }
 #endif