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[PATCH] tidy up chrdev_open 

Use a single goto label for chrdev_put + return error cases.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
hifive-unleashed-5.1
Christoph Hellwig 2008-08-11 15:34:22 +02:00 committed by Al Viro
parent ca30bc9952
commit a518ab9329
1 changed files with 14 additions and 7 deletions
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21
fs/char_dev.c
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@ -386,15 +386,22 @@ static int chrdev_open(struct inode *inode, struct file *filp)
cdev_put(new);
if (ret)
return ret;
ret = -ENXIO;
filp->f_op = fops_get(p->ops);
if (!filp->f_op) {
cdev_put(p);
return -ENXIO;
}
if (filp->f_op->open)
if (!filp->f_op)
goto out_cdev_put;
if (filp->f_op->open) {
ret = filp->f_op->open(inode,filp);
if (ret)
cdev_put(p);
if (ret)
goto out_cdev_put;
}
return 0;
out_cdev_put:
cdev_put(p);
return ret;
}