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| author | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-01-15 15:58:25 -0500 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-01-15 15:58:25 -0500 |
| commit | 7bcc1ec07748cae3552dc9b46701c117926c8923 (patch) | |
| tree | 2b3edc7de77ca306b2559ae341077094bac8c4a2 /drivers/xen/privcmd.c | |
| parent | e5c702d3b268066dc70d619ecff06a08065f343f (diff) | |
| parent | 29594404d7fe73cd80eaa4ee8c43dcc53970c60e (diff) | |
| download | linux-next-7bcc1ec07748cae3552dc9b46701c117926c8923.tar.gz | |
Merge tag 'v3.7' into stable/for-linus-3.8
Linux 3.7
* tag 'v3.7': (833 commits)
Linux 3.7
Input: matrix-keymap - provide proper module license
Revert "revert "Revert "mm: remove __GFP_NO_KSWAPD""" and associated damage
ipv4: ip_check_defrag must not modify skb before unsharing
Revert "mm: avoid waking kswapd for THP allocations when compaction is deferred or contended"
inet_diag: validate port comparison byte code to prevent unsafe reads
inet_diag: avoid unsafe and nonsensical prefix matches in inet_diag_bc_run()
inet_diag: validate byte code to prevent oops in inet_diag_bc_run()
inet_diag: fix oops for IPv4 AF_INET6 TCP SYN-RECV state
mm: vmscan: fix inappropriate zone congestion clearing
vfs: fix O_DIRECT read past end of block device
net: gro: fix possible panic in skb_gro_receive()
tcp: bug fix Fast Open client retransmission
tmpfs: fix shared mempolicy leak
mm: vmscan: do not keep kswapd looping forever due to individual uncompactable zones
mm: compaction: validate pfn range passed to isolate_freepages_block
mmc: sh-mmcif: avoid oops on spurious interrupts (second try)
Revert misapplied "mmc: sh-mmcif: avoid oops on spurious interrupts"
mmc: sdhci-s3c: fix missing clock for gpio card-detect
lib/Makefile: Fix oid_registry build dependency
...
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Conflicts:
arch/arm/xen/enlighten.c
drivers/xen/Makefile
[We need to have the v3.7 base as the 'for-3.8' was based off v3.7-rc3
and there are some patches in v3.7-rc6 that we to have in our branch]
Diffstat (limited to 'drivers/xen/privcmd.c')
| -rw-r--r-- | drivers/xen/privcmd.c | 18 |
1 files changed, 11 insertions, 7 deletions
diff --git a/drivers/xen/privcmd.c b/drivers/xen/privcmd.c index f6316127f53f..421375a9196a 100644 --- a/drivers/xen/privcmd.c +++ b/drivers/xen/privcmd.c @@ -399,13 +399,13 @@ static long privcmd_ioctl_mmap_batch(void __user *udata, int version) down_write(&mm->mmap_sem); vma = find_vma(mm, m.addr); - ret = -EINVAL; if (!vma || vma->vm_ops != &privcmd_vm_ops || (m.addr != vma->vm_start) || ((m.addr + (nr_pages << PAGE_SHIFT)) != vma->vm_end) || !privcmd_enforce_singleshot_mapping(vma)) { up_write(&mm->mmap_sem); + ret = -EINVAL; goto out; } if (xen_feature(XENFEAT_auto_translated_physmap)) { @@ -429,12 +429,16 @@ static long privcmd_ioctl_mmap_batch(void __user *udata, int version) up_write(&mm->mmap_sem); - if (state.global_error && (version == 1)) { - /* Write back errors in second pass. */ - state.user_mfn = (xen_pfn_t *)m.arr; - state.err = err_array; - ret = traverse_pages(m.num, sizeof(xen_pfn_t), - &pagelist, mmap_return_errors_v1, &state); + if (version == 1) { + if (state.global_error) { + /* Write back errors in second pass. */ + state.user_mfn = (xen_pfn_t *)m.arr; + state.err = err_array; + ret = traverse_pages(m.num, sizeof(xen_pfn_t), + &pagelist, mmap_return_errors_v1, &state); + } else + ret = 0; + } else if (version == 2) { ret = __copy_to_user(m.err, err_array, m.num * sizeof(int)); if (ret) |