acpi_memhotplug.c: free memory device if acpi_memory_enable_device() failed

If acpi_memory_enable_device() fails, acpi_memory_enable_device() will
return a non-zero value, which means we fail to bind the memory device to
this driver.  So we should free memory device before
acpi_memory_device_add() returns.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Cc: Len Brown <lenb@kernel.org>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: Yasuaki ISIMATU <isimatu.yasuaki@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

acpi_memhotplug.c: fix memory leak when memory device is unbound from the module acpi_memhotplug

We allocate memory to store acpi_memory_info, so we should free it before
freeing mem_device.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Cc: Len Brown <lenb@kernel.org>
Cc: "Brown, Len" <len.brown@intel.com>
Cc: Yasuaki ISIMATU <isimatu.yasuaki@jp.fujitsu.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

Merge branch 'signal/from-sfr'

Conflicts:
arch/alpha/kernel/process.c
arch/arm/include/asm/thread_info.h
arch/powerpc/kernel/entry_64.S
arch/x86/kernel/signal.c

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drivers/mtd/nand/Kconfig

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drivers/net/tun.c

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Merge commit 'refs/next/20120822/kvm'

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arch/s390/include/asm/processor.h

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arch/Kconfig
arch/x86/Kconfig
include/linux/sched.h
kernel/rcutree.h
kernel/rcutree_plugin.h

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arch/Kconfig

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Documentation/edac.txt
drivers/edac/amd64_edac.c

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kernel/audit_tree.c

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arch/alpha/Kconfig
arch/mips/kernel/module.c
arch/s390/Kconfig
arch/xtensa/Kconfig

Merge remote-tracking branch 'sound-asoc/for-next'

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Merge commit 'refs/next/20120823/drm'

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