X-Git-Url: https://git.octo.it/?p=collectd.git;a=blobdiff_plain;f=src%2Fdf.c;fp=src%2Fdf.c;h=41a03cbf6280067815419d8802c5d431c0fd239f;hp=371a7fc3db9973b676322a75362d14b633b45a81;hb=59c7ee1cafaf53814838794908dd84f8101334c7;hpb=bc5ed652b1fe5cf210feec21226ede3e21882b45

diff --git a/src/df.c b/src/df.c
index 371a7fc3..41a03cbf 100644
--- a/src/df.c
+++ b/src/df.c
@@ -252,9 +252,11 @@ static int df_read (void)
 		 * report negative free space for user. Notice. blk_reserved
 		 * will start to diminish after this. */
 #if HAVE_STATVFS
-		/* Cast is needed to avoid compiler warnings.
+		/* Cast and temporary variable are needed to avoid
+		 * compiler warnings.
 		 * ((struct statvfs).f_bavail is unsigned (POSIX)) */
-		if (((int64_t) statbuf.f_bavail) < 0)
+		int64_t signed_bavail = (int64_t) statbuf.f_bavail;
+		if (signed_bavail < 0)
 			statbuf.f_bavail = 0;
 #elif HAVE_STATFS
 		if (statbuf.f_bavail < 0)