Fix coverity defects: CID 150921, 150927

CID 150921: Unchecked return value (CHECKED_RETURN)
CID 150927 : Unchecked return value (CHECKED_RETURN)

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: luozhengzheng <luo.zhengzheng@zte.com.cn>
Closes #5267

diff --git a/lib/libspl/getexecname.c b/lib/libspl/getexecname.c
index 478351ce722c2ea9e6dff33b3876c365e3ed4865..c21a110ad5665c08b093206e0b52367ddbcb75e7 100644 (file)
--- a/lib/libspl/getexecname.c
+++ b/lib/libspl/getexecname.c
@@ -38,7 +38,7 @@ getexecname(void)
        char *ptr = NULL;
        ssize_t rc;
 
-       pthread_mutex_lock(&mtx);
+       (void) pthread_mutex_lock(&mtx);
 
        if (strlen(execname) == 0) {
                rc = readlink("/proc/self/exe",
@@ -53,6 +53,6 @@ getexecname(void)
                ptr = execname;
        }
 
-       pthread_mutex_unlock(&mtx);
+       (void) pthread_mutex_unlock(&mtx);
        return (ptr);
 }