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Merge pull request #1352 from martin-frbg/issue1351 

Output an error message when shmat() fails
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Martin Kroeker 2017-11-09 21:08:16 +01:00 committed by GitHub
parent c6968edec4 d8576826c4
commit cc26cdce0c
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1 changed files with 5 additions and 2 deletions
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7
driver/others/init.c
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@ -78,6 +78,8 @@ USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <sys/sysinfo.h> #include <sys/sysinfo.h>
#include <sys/syscall.h> #include <sys/syscall.h>
#include <sys/types.h>
#include <errno.h>
#include <sys/shm.h> #include <sys/shm.h>
#include <fcntl.h> #include <fcntl.h>
#include <sched.h> #include <sched.h>
@ -659,8 +661,9 @@ static void open_shmem(void) {
exit(1); exit(1);
} }
if (shmid != -1) common = (shm_t *)shmat(shmid, NULL, 0); if (shmid != -1) {
if ( (common = shmat(shmid, NULL, 0)) == (void*)-1) perror ("Attaching shared memory segment");
}
#ifdef DEBUG #ifdef DEBUG
fprintf(stderr, "Shared Memory id = %x Address = %p\n", shmid, common); fprintf(stderr, "Shared Memory id = %x Address = %p\n", shmid, common);
#endif #endif