From 8637980bab3f09157eef20cc65d2eb7393c770fd Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 28 Mar 2006 01:56:18 -0800 Subject: [PATCH] [PATCH] paride: register_chrdev fix If the user specified `major=0' (odd thing to do), pg.c will use dynamic allocation. We need to pick up that major for subsequent unregister_chrdev(). Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/paride/pg.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c index 6f5df0f..79b8682 100644 --- a/drivers/block/paride/pg.c +++ b/drivers/block/paride/pg.c @@ -643,7 +643,8 @@ static ssize_t pg_read(struct file *filp, char __user *buf, size_t count, loff_t static int __init pg_init(void) { - int unit, err = 0; + int unit; + int err; if (disable){ err = -1; @@ -657,16 +658,17 @@ static int __init pg_init(void) goto out; } - if (register_chrdev(major, name, &pg_fops)) { + err = register_chrdev(major, name, &pg_fops); + if (err < 0) { printk("pg_init: unable to get major number %d\n", major); for (unit = 0; unit < PG_UNITS; unit++) { struct pg *dev = &devices[unit]; if (dev->present) pi_release(dev->pi); } - err = -1; goto out; } + major = err; /* In case the user specified `major=0' (dynamic) */ pg_class = class_create(THIS_MODULE, "pg"); if (IS_ERR(pg_class)) { err = PTR_ERR(pg_class); -- 2.7.4