PCI: sysfs: Fix failure path for addition of "vpd" attribute
commit13ffe47637ef65ec464fc77d9403f9872fbab4b4
authorBen Hutchings <bhutchings@solarflare.com>
Thu, 13 Jan 2011 19:47:56 +0000 (13 19:47 +0000)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 23 Mar 2011 20:16:50 +0000 (23 13:16 -0700)
tree3f0b1ae2cdd5178acb10c5c91076b013de4e8f55
parent85dcbf8c826a7fc14c7f5a81c2f8fd09dcf2ee0f
PCI: sysfs: Fix failure path for addition of "vpd" attribute

commit 0f12a4e29368a9476076515881d9ef4e5876c6e2 upstream.

Commit 280c73d ("PCI: centralize the capabilities code in
pci-sysfs.c") changed the initialisation of the "rom" and "vpd"
attributes, and made the failure path for the "vpd" attribute
incorrect.  We must free the new attribute structure (attr), but
instead we currently free dev->vpd->attr.  That will normally be NULL,
resulting in a memory leak, but it might be a stale pointer, resulting
in a double-free.

Found by inspection; compile-tested only.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
drivers/pci/pci-sysfs.c