Zach Welch <zw@superlucidity.net>fix unused return value warnings (3 of 4)

git-svn-id: svn://svn.berlios.de/openocd/trunk@1482 b42882b7-edfa-0310-969c-e2dbd0fdcd60

diff --git a/src/target/target.c b/src/target/target.c
index 40a2dc93ff46aabd44ddb1522fe3d52e45de8aae..ab82389432acbbe73b0f58d100a3ccba9c3cc635 100644 (file)
--- a/src/target/target.c
+++ b/src/target/target.c
@@ -2491,20 +2491,27 @@ int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args,
        return retval;
 }
 
+static void writeData(FILE *f, const void *data, size_t len)
+{
+       size_t written = fwrite(data, len, 1, f);
+       if (written != len)
+               LOG_ERROR("failed to write %u bytes: %s", len, strerror(errno));
+}
+
 static void writeLong(FILE *f, int l)
 {
        int i;
        for (i=0; i<4; i++)
        {
                char c=(l>>(i*8))&0xff;
-               fwrite(&c, 1, 1, f);
+               writeData(f, &c, 1);
        }
 
 }
 
 static void writeString(FILE *f, char *s)
 {
-       fwrite(s, 1, strlen(s), f);
+       writeData(f, s, strlen(s));
 }
 
 /* Dump a gmon.out histogram file. */
@@ -2514,13 +2521,14 @@ static void writeGmon(u32 *samples, u32 sampleNum, char *filename)
        FILE *f=fopen(filename, "w");
        if (f==NULL)
                return;
-       fwrite("gmon", 1, 4, f);
+       writeString(f, "gmon");
        writeLong(f, 0x00000001); /* Version */
        writeLong(f, 0); /* padding */
        writeLong(f, 0); /* padding */
        writeLong(f, 0); /* padding */
 
-       fwrite("", 1, 1, f);  /* GMON_TAG_TIME_HIST */
+       u8 zero = 0;  /* GMON_TAG_TIME_HIST */
+       writeData(f, &zero, 1);
 
        /* figure out bucket size */
        u32 min=samples[0];
@@ -2569,9 +2577,7 @@ static void writeGmon(u32 *samples, u32 sampleNum, char *filename)
        writeLong(f, 64000000);         /* 64MHz */
        writeString(f, "seconds");
        for (i=0; i<(15-strlen("seconds")); i++)
-       {
-               fwrite("", 1, 1, f);    /* padding */
-       }
+               writeData(f, &zero, 1);
        writeString(f, "s");
 
        /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
@@ -2591,7 +2597,7 @@ static void writeGmon(u32 *samples, u32 sampleNum, char *filename)
                        data[i*2+1]=(val>>8)&0xff;
                }
                free(buckets);
-               fwrite(data, 1, length*2, f);
+               writeData(f, data, length * 2);
                free(data);
        } else
        {