[PATCH] fwts_mmap: fwts_page_size fix comparing size_t against -1

[Colin King]

From: Colin Ian King <colin.king at canonical.com>

sysconf returns a long and we need to compare this to -1
rather than a size_t (which is always positive).

Signed-off-by: Colin Ian King <colin.king at canonical.com>
---
 src/lib/src/fwts_mmap.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib/src/fwts_mmap.c b/src/lib/src/fwts_mmap.c
index c5acd26..58ab973 100644
--- a/src/lib/src/fwts_mmap.c
+++ b/src/lib/src/fwts_mmap.c
@@ -33,12 +33,12 @@
  */
 size_t fwts_page_size(void)
 {
-	size_t page_size;
+	long page_size;
 
 	page_size = sysconf(_SC_PAGESIZE);
 
 	/* If sysconf() returns -1, default it 4K */
-	return page_size == -1 ? FWTS_DEFAULT_PAGE_SIZE : page_size;
+	return (size_t)(page_size == -1 ? FWTS_DEFAULT_PAGE_SIZE : page_size);
 }
 
 /*
-- 
1.7.10.4