diff options
| author | Tero Kristo <t-kristo@ti.com> | 2012-09-25 19:05:32 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2012-10-17 09:00:31 -0700 |
| commit | 64e29fd5ed42f5d0ff5b0ea9395b3abd5d43f89b (patch) | |
| tree | 2d1a162662e2279f03d17de9b2e33c5d6cb8ca54 /include/asm-generic/ioctl.h | |
| parent | 49c58e82023649924b1b0f38d715d94093f4044b (diff) | |
ARM: OMAP: clockdomain: Fix locking on _clkdm_clk_hwmod_enable / disable
Previously the code only acquired spinlock after increasing / decreasing
the usecount value, which is wrong. This leaves a small window where
a task switch may occur between the check of the usecount and the actual
wakeup / sleep of the domain. Fixed by moving the spinlock locking before
the usecount access. Left the usecount as atomic_t if someone wants an
easy access to the parameter through atomic_read.
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'include/asm-generic/ioctl.h')
0 files changed, 0 insertions, 0 deletions