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authorJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-02 19:05:48 +0400
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-04-07 21:19:10 +0400
commit2f3edc6936e3f6be3f1df1e89c141ae028fa605e (patch)
tree14198ea135c600b42e4c7416db44967a6517a2db /include/linux/attribute_container.h
parentfa8e36c39b00a219d2c37250e493c3421e0e67e9 (diff)
downloadlinux-2f3edc6936e3f6be3f1df1e89c141ae028fa605e.tar.xz
[SCSI] transport_class: BUG if we can't release the attribute container
Every current transport class calls transport_container_release but ignores the return value. This is catastrophic if it returns an error because the containers are part of a global list and the next action of almost every transport class is to free the memory used by the container. Fix this by making transport_container_release a void, but making it BUG if attribute_container_release returns an error ... this catches the root cause of a system panic much earlier. If we don't do this, we get an eventual BUG when the attribute container list notices the corruption caused by the freed memory it's still referencing. Also made attribute_container_release __must_check as a reminder. Cc: Greg KH <greg@kroah.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'include/linux/attribute_container.h')
-rw-r--r--include/linux/attribute_container.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/attribute_container.h b/include/linux/attribute_container.h
index f5582332af04..574b201b99d8 100644
--- a/include/linux/attribute_container.h
+++ b/include/linux/attribute_container.h
@@ -37,7 +37,7 @@ attribute_container_set_no_classdevs(struct attribute_container *atc)
}
int attribute_container_register(struct attribute_container *cont);
-int attribute_container_unregister(struct attribute_container *cont);
+int __must_check attribute_container_unregister(struct attribute_container *cont);
void attribute_container_create_device(struct device *dev,
int (*fn)(struct attribute_container *,
struct device *,