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Subject[PATCH 62/62] sysfs: fix for thinko with sysfs_bin_attr_init()
Date
From: Stephen Rothwell <sfr@canb.auug.org.au>

After merging the final tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/pci/pci-sysfs.c: In function 'pci_create_legacy_files':
drivers/pci/pci-sysfs.c:645: error: lvalue required as unary '&' operand
drivers/pci/pci-sysfs.c:658: error: lvalue required as unary '&' operand

Caused by commit "sysfs: Use sysfs_attr_init and sysfs_bin_attr_init on
dynamic attributes" interacting with commit "sysfs: Use one lockdep
class per sysfs attribute") both from the driver-core tree.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
drivers/pci/pci-sysfs.c | 4 ++--
include/linux/sysfs.h | 2 +-
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/pci/pci-sysfs.c b/drivers/pci/pci-sysfs.c
index 9fa183c..de29645 100644
--- a/drivers/pci/pci-sysfs.c
+++ b/drivers/pci/pci-sysfs.c
@@ -642,7 +642,7 @@ void pci_create_legacy_files(struct pci_bus *b)
if (!b->legacy_io)
goto kzalloc_err;

- sysfs_bin_attr_init(&b->legacy_io);
+ sysfs_bin_attr_init(b->legacy_io);
b->legacy_io->attr.name = "legacy_io";
b->legacy_io->size = 0xffff;
b->legacy_io->attr.mode = S_IRUSR | S_IWUSR;
@@ -655,7 +655,7 @@ void pci_create_legacy_files(struct pci_bus *b)
goto legacy_io_err;

/* Allocated above after the legacy_io struct */
- sysfs_bin_attr_init(&b->legacy_mem);
+ sysfs_bin_attr_init(b->legacy_mem);
b->legacy_mem = b->legacy_io + 1;
b->legacy_mem->attr.name = "legacy_mem";
b->legacy_mem->size = 1024*1024;
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index d77cde6..f0496b3 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -110,7 +110,7 @@ struct bin_attribute {
* enabled. Lockdep gives a nice error when your attribute is
* added to sysfs if you don't have this.
*/
-#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&bin_attr->attr)
+#define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)

struct sysfs_ops {
ssize_t (*show)(struct kobject *, struct attribute *,char *);
--
1.7.0.1


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