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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/scsi/sg.c
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/scsi/sg.c')
-rw-r--r--drivers/scsi/sg.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c
index 516925d8b57..b4ef2f84ea3 100644
--- a/drivers/scsi/sg.c
+++ b/drivers/scsi/sg.c
@@ -1154,7 +1154,6 @@ sg_poll(struct file *filp, poll_table * wait)
static int
sg_fasync(int fd, struct file *filp, int mode)
{
- int retval;
Sg_device *sdp;
Sg_fd *sfp;
@@ -1163,8 +1162,7 @@ sg_fasync(int fd, struct file *filp, int mode)
SCSI_LOG_TIMEOUT(3, printk("sg_fasync: %s, mode=%d\n",
sdp->disk->disk_name, mode));
- retval = fasync_helper(fd, filp, mode, &sfp->async_qp);
- return (retval < 0) ? retval : 0;
+ return fasync_helper(fd, filp, mode, &sfp->async_qp);
}
static int