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authorJonathan Corbet <corbet@lwn.net>2009-02-01 14:52:56 -0700
committerJonathan Corbet <corbet@lwn.net>2009-03-16 08:34:35 -0600
commit60aa49243d09afc873f082567d2e3c16634ced84 (patch)
treebb7c8d9668b35a3aa4e90d0a62500ac9d3e67f7f /drivers/gpu
parent76398425bb06b07cc3a3b1ce169c67dc9d6874ed (diff)
Rationalize fasync return values
Most fasync implementations do something like: return fasync_helper(...); But fasync_helper() will return a positive value at times - a feature used in at least one place. Thus, a number of other drivers do: err = fasync_helper(...); if (err < 0) return err; return 0; In the interests of consistency and more concise code, it makes sense to map positive return values onto zero where ->fasync() is called. Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/drm_fops.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index f52663ebe01..e13cb62bbae 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -337,14 +337,10 @@ int drm_fasync(int fd, struct file *filp, int on)
{
struct drm_file *priv = filp->private_data;
struct drm_device *dev = priv->minor->dev;
- int retcode;
DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
(long)old_encode_dev(priv->minor->device));
- retcode = fasync_helper(fd, filp, on, &dev->buf_async);
- if (retcode < 0)
- return retcode;
- return 0;
+ return fasync_helper(fd, filp, on, &dev->buf_async);
}
EXPORT_SYMBOL(drm_fasync);