diff options
| author | Olof Johansson <olof@lixom.net> | 2012-09-05 15:33:19 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2012-09-05 15:33:19 -0700 |
| commit | 301fd5c13257862df66c81c48d963d474e63e0ef (patch) | |
| tree | 128af89336dd8b1ee62696c4588057b2eb0b445e /arch/m68k/kernel/sys_m68k.c | |
| parent | daa56a06b5a592ceb69130a1d15c067a078f2701 (diff) | |
| parent | 7952717adb69efc1d2443a1858f96d23c2fb93e0 (diff) | |
Merge branch 'kzm9g' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
* 'kzm9g' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: kzm9g: enable restarting
+ sync to 3.6-rc3
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); |