rsocket: Remove fscanf build warnings

Cast fscanf return values to (void) to indicate that we don't
care if the call fails.  In the case of a failure, we simply
fall back to using default values.

Problem reported by Or Gerlitz <ogerlitz@mellanox.com>

Signed-off-by: Sean Hefty <sean.hefty@intel.com>

diff --git a/src/rsocket.c b/src/rsocket.c
index 74dbcc77cdfab15e70fe49e13ea79d5488ffe115..58fcb8e583234b87e3e992375bee14bb4595a557 100644 (file)
--- a/src/rsocket.c
+++ b/src/rsocket.c
@@ -256,12 +256,12 @@ void rs_configure(void)
                goto out;
 
        if ((f = fopen(RS_CONF_DIR "/polling_time", "r"))) {
-               fscanf(f, "%u", &polling_time);
+               (void) fscanf(f, "%u", &polling_time);
                fclose(f);
        }
 
        if ((f = fopen(RS_CONF_DIR "/inline_default", "r"))) {
-               fscanf(f, "%hu", &def_inline);
+               (void) fscanf(f, "%hu", &def_inline);
                fclose(f);
 
                if (def_inline < RS_MIN_INLINE)
@@ -269,17 +269,17 @@ void rs_configure(void)
        }
 
        if ((f = fopen(RS_CONF_DIR "/sqsize_default", "r"))) {
-               fscanf(f, "%hu", &def_sqsize);
+               (void) fscanf(f, "%hu", &def_sqsize);
                fclose(f);
        }
 
        if ((f = fopen(RS_CONF_DIR "/rqsize_default", "r"))) {
-               fscanf(f, "%hu", &def_rqsize);
+               (void) fscanf(f, "%hu", &def_rqsize);
                fclose(f);
        }
 
        if ((f = fopen(RS_CONF_DIR "/mem_default", "r"))) {
-               fscanf(f, "%u", &def_mem);
+               (void) fscanf(f, "%u", &def_mem);
                fclose(f);
 
                if (def_mem < 1)
@@ -287,14 +287,14 @@ void rs_configure(void)
        }
 
        if ((f = fopen(RS_CONF_DIR "/wmem_default", "r"))) {
-               fscanf(f, "%u", &def_wmem);
+               (void) fscanf(f, "%u", &def_wmem);
                fclose(f);
                if (def_wmem < RS_SNDLOWAT)
                        def_wmem = RS_SNDLOWAT << 1;
        }
 
        if ((f = fopen(RS_CONF_DIR "/iomap_size", "r"))) {
-               fscanf(f, "%hu", &def_iomap_size);
+               (void) fscanf(f, "%hu", &def_iomap_size);
                fclose(f);
 
                /* round to supported values */