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[PATCH] sh: fix proc file removal for superh store queue module

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Clean up proc file removal in sq module for superh arch.  currently on a
failed module load or on module unload a proc file is left registered which
can cause a random memory execution or oopses if read after unload.  This
patch cleans up that deregistration.

Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Neil Horman 2006-08-05 12:14:45 -07:00 committed by Linus Torvalds
parent 453c3e478e
commit 757be18612
1 changed files with 7 additions and 3 deletions
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10
arch/sh/kernel/cpu/sh4/sq.c
View file

@ -421,18 +421,22 @@ static struct miscdevice sq_dev = {
static int __init sq_api_init(void)
{
int ret;
printk(KERN_NOTICE "sq: Registering store queue API.\n");
#ifdef CONFIG_PROC_FS
create_proc_read_entry("sq_mapping", 0, 0, sq_mapping_read_proc, 0);
#endif
return misc_register(&sq_dev);
ret = misc_register(&sq_dev);
if (ret)
remove_proc_entry("sq_mapping", NULL);
return ret;
}
static void __exit sq_api_exit(void)
{
misc_deregister(&sq_dev);
remove_proc_entry("sq_mapping", NULL);
}
module_init(sq_api_init);