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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 07:08:39 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-08-27 07:08:39 -0700 |
| commit | 9db48aaf18d675ac41f550c9384154e0c00de2ef (patch) | |
| tree | 70a19b9164c103e5f52dddff609e01672f8ef616 /arch/m68k/kernel/sys_m68k.c | |
| parent | 0592969e73ae50ce6852d1aff3d222a335289094 (diff) | |
| parent | fea7a08acb13524b47711625eebea40a0ede69a0 (diff) | |
Merge 3.6-rc3 into driver-core-next
This picks up the printk fixes in 3.6-rc3 that are needed in this branch.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/m68k/kernel/sys_m68k.c')
| -rw-r--r-- | arch/m68k/kernel/sys_m68k.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/m68k/kernel/sys_m68k.c b/arch/m68k/kernel/sys_m68k.c index 8623f8dc16f..9a5932ec368 100644 --- a/arch/m68k/kernel/sys_m68k.c +++ b/arch/m68k/kernel/sys_m68k.c @@ -479,9 +479,13 @@ sys_atomic_cmpxchg_32(unsigned long newval, int oldval, int d3, int d4, int d5, goto bad_access; } - mem_value = *mem; + /* + * No need to check for EFAULT; we know that the page is + * present and writable. + */ + __get_user(mem_value, mem); if (mem_value == oldval) - *mem = newval; + __put_user(newval, mem); pte_unmap_unlock(pte, ptl); up_read(&mm->mmap_sem); |