util/os_file: suppress sign comparison warning

Signed-off-by: Eric Engestrom <[email protected]>
Reviewed-by: Eric Anholt <[email protected]>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/util/os_file.c b/src/util/os_file.c
index 6e78a231d67..a700f3aada3 100644
--- a/src/util/os_file.c
+++ b/src/util/os_file.c
@@ -72,7 +72,7 @@ os_read_file(const char *filename)
 
    ssize_t actually_read;
    size_t offset = 0, remaining = len - 1;
-   while ((actually_read = readN(fd, buf + offset, remaining)) == remaining) {
+   while ((actually_read = readN(fd, buf + offset, remaining)) == (ssize_t)remaining) {
       char *newbuf = realloc(buf, 2 * len);
       if (!newbuf) {
          free(buf);