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authorNeil Horman <nhorman@tuxdriver.com>2006-08-05 12:14:45 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-08-06 08:57:48 -0700
commit757be186129b674e3a0146a4bc1861ed0744cd95 (patch)
tree1cf219ca504b56a1057d3939204104bbec0b8b6b /arch/sh
parent453c3e478e94004606b394b9ea57de71094e7c6a (diff)
downloadop-kernel-dev-757be186129b674e3a0146a4bc1861ed0744cd95.zip
op-kernel-dev-757be186129b674e3a0146a4bc1861ed0744cd95.tar.gz
[PATCH] sh: fix proc file removal for superh store queue module
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>
Diffstat (limited to 'arch/sh')
-rw-r--r--arch/sh/kernel/cpu/sh4/sq.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/arch/sh/kernel/cpu/sh4/sq.c b/arch/sh/kernel/cpu/sh4/sq.c
index 781dbb1..b09805f 100644
--- a/arch/sh/kernel/cpu/sh4/sq.c
+++ b/arch/sh/kernel/cpu/sh4/sq.c
@@ -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);
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