linux/arch/sparc
Sowmini Varadhan 9a78d4fc28 sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata
The function pcibios_add_device() added by commit d0c31e0200
("sparc/PCI: Fix for panic while enabling SR-IOV") initializes
the dev_archdata by doing a memcpy from the PF. This has the
problem that it erroneously copies the OF device without
explicitly refcounting it.

As David Miller pointed out: "Generally speaking we don't
really support hot-plug for OF probed devices, but if we did
all of the device tree pointers have to be refcounted properly."

To fix this error, and also avoid code duplication, this patch
creates a new helper function, pci_init_dev_archdata(), that
initializes the fields in dev_archdata, and can be invoked
by callers after they have taken the needed refcounts

Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Tested-by: Babu Moger <babu.moger@oracle.com>
Reviewed-by: Khalid Aziz <khalid.aziz@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-04-21 16:43:45 -04:00
..
boot sparc: Add "install" target 2014-08-04 20:45:59 -07:00
configs sparc/defconfigs: Remove CONFIG_IPV6_PRIVACY 2016-04-21 16:43:44 -04:00
crypto crypto: sparc - initialize blkcipher.ivsize 2015-10-08 21:36:48 +08:00
include sparc: Write up preadv2/pwritev2 syscalls. 2016-03-29 18:39:26 -07:00
kernel sparc/pci: Refactor dev_archdata initialization into pci_init_dev_archdata 2016-04-21 16:43:45 -04:00
lib sparc64: fix FP corruption in user copy functions 2015-12-24 12:13:18 -05:00
math-emu arch/sparc/math-emu/math_32.c: drop stray break operator 2014-08-04 20:29:06 -07:00
mm Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2016-03-28 15:14:11 -05:00
net sparc: Fix misspellings in comments. 2016-03-20 21:28:58 -07:00
oprofile
power Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc 2014-10-11 20:36:34 -04:00
prom sparc64: Fix register corruption in top-most kernel stack frame during boot. 2014-10-24 09:52:49 -07:00
Kbuild sparc64: Add SHA1 driver making use of the 'sha1' instruction. 2012-08-20 15:08:49 -07:00
Kconfig dma-mapping: always provide the dma_map_ops based implementation 2016-01-20 17:09:18 -08:00
Kconfig.debug lib: consolidate DEBUG_STACK_USAGE option 2011-05-25 08:39:54 -07:00
Makefile sparc32: Add -Wa,-Av8 to KBUILD_CFLAGS. 2016-03-01 00:24:04 -05:00