[PATCH] tpm: sysfs owernship changes

In the current driver all sysfs files end up owned by the base driver module
rather than the module that actually owns the device this is a problem if the
module is unloaded and the file is open.  This patch fixes all that and lumps
the files into an attribute_group.

Signed-off-by: Kylene Hall <kjhall@us.ibm.com>
Signed-off-by: Yani Ioannou <yani.ioannou@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 3a5af7e06624..a3ff4dc5bdb3 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -35,6 +35,14 @@ enum tpm_addr {
         TPM_DATA = 0x4F
 };
 
+extern ssize_t tpm_show_pubek(struct device *, struct device_attribute *attr,
+                                char *);
+extern ssize_t tpm_show_pcrs(struct device *, struct device_attribute *attr,
+                                char *);
+extern ssize_t tpm_show_caps(struct device *, struct device_attribute *attr,
+                                char *);
+extern ssize_t tpm_store_cancel(struct device *, struct device_attribute *attr,
+                                const char *, size_t);
 
 struct tpm_chip;
 
@@ -47,6 +55,7 @@ struct tpm_vendor_specific {
         int (*send) (struct tpm_chip *, u8 *, size_t);
         void (*cancel) (struct tpm_chip *);
         struct miscdevice miscdev;
+        struct attribute_group *attr_group;
 };
 
 struct tpm_chip {