diff options
author | KyongHo <pullip.cho@samsung.com> | 2012-05-29 15:06:49 -0700 |
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committer | Rajanikanth H.V <rajanikanth.hv@stericsson.com> | 2012-12-14 17:07:22 +0530 |
commit | 189d8bcf68bddebe0b26a1da9629e3473ca1bd48 (patch) | |
tree | d109aa01e00d2ca4d46537df5175a27f6148936f /drivers/mmc | |
parent | 7bf8cb67215c87b5c76e6cc954a36d7ad6fee57b (diff) |
mm: fix faulty initialization in vmalloc_init()
The transfer of ->flags causes some of the static mapping virtual
addresses to be prematurely freed (before the mapping is removed) because
VM_LAZY_FREE gets "set" if tmp->flags has VM_IOREMAP set. This might
cause subsequent vmalloc/ioremap calls to fail because it might allocate
one of the freed virtual address ranges that aren't unmapped.
va->flags has different types of flags from tmp->flags. If a region with
VM_IOREMAP set is registered with vm_area_add_early(), it will be removed
by __purge_vmap_area_lazy().
Fix vmalloc_init() to correctly initialize vmap_area for the given
vm_struct.
Also initialise va->vm. If it is not set, find_vm_area() for the early
vm regions will always fail.
Signed-off-by: KyongHo Cho <pullip.cho@samsung.com>
Cc: "Olav Haugan" <ohaugan@codeaurora.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
ST-Ericsson ID: 440451
ST-Ericsson Linux next: NA
ST-Ericsson FOSS-OUT ID: Trivial
Change-Id: If5af5590d9dcd08048df2af31424a99e189be838
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/63748
Tested-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Reviewed-by: Shreshtha Kumar SAHU <shreshthakumar.sahu@stericsson.com>
Reviewed-by: Rabin VINCENT <rabin.vincent@stericsson.com>
Diffstat (limited to 'drivers/mmc')
0 files changed, 0 insertions, 0 deletions