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Check return code from mmap() properly.

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Marcus Sundberg 2000-05-14 17:24:35 +00:00
parent a254c348e7
commit ba644e67c7
1 changed files with 5 additions and 2 deletions
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7
source/snd_linux.c
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@ -38,6 +38,10 @@
#include <stdio.h> #include <stdio.h>
#include "quakedef.h" #include "quakedef.h"
#ifndef MAP_FAILED
# define MAP_FAILED ((void *) -1)
#endif
int audio_fd; int audio_fd;
int snd_inited; int snd_inited;
@ -140,8 +144,7 @@ qboolean SNDDMA_Init(void)
shm->buffer = (unsigned char *) mmap(NULL, info.fragstotal shm->buffer = (unsigned char *) mmap(NULL, info.fragstotal
* info.fragsize, PROT_WRITE, MAP_FILE|MAP_SHARED, audio_fd, 0); * info.fragsize, PROT_WRITE, MAP_FILE|MAP_SHARED, audio_fd, 0);
if (!shm->buffer) if (shm->buffer == MAP_FAILED) {
{
perror("/dev/dsp"); perror("/dev/dsp");
Con_Printf("Could not mmap /dev/dsp\n"); Con_Printf("Could not mmap /dev/dsp\n");
close(audio_fd); close(audio_fd);