diff options
Diffstat (limited to 'winsup/cygwin/mmap.cc')
| -rw-r--r-- | winsup/cygwin/mmap.cc | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/winsup/cygwin/mmap.cc b/winsup/cygwin/mmap.cc index 1aa7f669f..664ce95ab 100644 --- a/winsup/cygwin/mmap.cc +++ b/winsup/cygwin/mmap.cc @@ -445,7 +445,7 @@ mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t off) DWORD gran_off = off & ~(granularity - 1); DWORD gran_len = howmany (len, granularity) * granularity; - fhandler_base *fh = NULL; + fhandler_base *fh; caddr_t base = addr; HANDLE h; @@ -459,14 +459,15 @@ mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t off) ReleaseResourceLock(LOCK_MMAP_LIST, READ_LOCK | WRITE_LOCK, "mmap"); return MAP_FAILED; } - if (cfd->get_device () == FH_DISK) + fh = cfd; + if (fh->get_device () == FH_DISK) { DWORD fsiz = GetFileSize (fh->get_handle (), NULL); fsiz -= gran_off; if (gran_len > fsiz) gran_len = fsiz; } - else if (cfd->get_device () == FH_ZERO) + else if (fh->get_device () == FH_ZERO) /* mmap /dev/zero is like MAP_ANONYMOUS. */ fd = -1; } |