From 28cbcb99d84b82c21c1bb457ed783f5a20f8b2b7 Mon Sep 17 00:00:00 2001 From: Frank Mori Hess Date: Tue, 26 Nov 2002 20:06:22 +0000 Subject: [PATCH] added error check for mmap() call --- demo/mmap.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/demo/mmap.c b/demo/mmap.c index 25b9b85..9cbe778 100644 --- a/demo/mmap.c +++ b/demo/mmap.c @@ -54,6 +54,10 @@ int main(int argc, char *argv[]) map=mmap(NULL,size,PROT_READ,MAP_SHARED,comedi_fileno(dev),0); fprintf(stderr,"map=%p\n",map); + if( map == MAP_FAILED ){ + perror( "mmap" ); + exit(1); + } for(i=0;i