bmp_logo: Check return value of fread()

Add basic error handling to fread() function calls.  This prevents
compililation warnings such as:

bmp_logo.c: In function ‘main’:
bmp_logo.c:71: warning: ignoring return value of ‘fread’, declared with
attribute warn_unused_result
...

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
1 file changed