diff options
Diffstat (limited to 'linux/fops.c')
| -rw-r--r-- | linux/fops.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/linux/fops.c b/linux/fops.c index 1c1a3584..1eb2bdac 100644 --- a/linux/fops.c +++ b/linux/fops.c @@ -1,8 +1,8 @@ /* fops.c -- File operations for DRM -*- linux-c -*- * Created: Mon Jan 4 08:58:31 1999 by faith@precisioninsight.com - * Revised: Fri Dec 3 10:26:26 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a @@ -23,8 +23,10 @@ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * DEALINGS IN THE SOFTWARE. - * - * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/fops.c,v 1.6 2000/02/23 04:47:27 martin Exp $ + * + * Authors: + * Rickard E. (Rik) Faith <faith@valinux.com> + * Daryll Strauss <daryll@valinux.com> * */ @@ -40,6 +42,7 @@ int drm_open_helper(struct inode *inode, struct file *filp, drm_device_t *dev) drm_file_t *priv; if (filp->f_flags & O_EXCL) return -EBUSY; /* No exclusive opens */ + if (!drm_cpu_valid()) return -EINVAL; DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor); @@ -211,11 +214,15 @@ int drm_write_string(drm_device_t *dev, const char *s) send -= count; } -#if LINUX_VERSION_CODE < 0x02020e || \ - ( LINUX_VERSION_CODE > 0x020300 && LINUX_VERSION_CODE < 0x020315 ) +#if LINUX_VERSION_CODE < 0x020315 && !defined(KILLFASYNCHASTHREEPARAMETERS) + /* The extra parameter to kill_fasync was added in 2.3.21, and is + _not_ present in _stock_ 2.2.14 and 2.2.15. However, some + distributions patch 2.2.x kernels to add this parameter. The + Makefile.linux attempts to detect this addition and defines + KILLFASYNCHASTHREEPARAMETERS if three parameters are found. */ if (dev->buf_async) kill_fasync(dev->buf_async, SIGIO); #else - /* Parameter added in 2.2.14 and 2.3.21 */ + /* Parameter added in 2.3.21 */ if (dev->buf_async) kill_fasync(dev->buf_async, SIGIO, POLL_IN); #endif DRM_DEBUG("waking\n"); |