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authorTejun Heo <tj@kernel.org>2009-08-14 14:41:02 +0900
committerTejun Heo <tj@kernel.org>2009-08-14 14:45:31 +0900
commit384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c (patch)
tree04c93f391a1b65c8bf8d7ba8643c07d26c26590a /drivers/video/atmel_lcdfb.c
parenta76761b621bcd8336065c4fe3a74f046858bc34c (diff)
parent142d44b0dd6741a64a7bdbe029110e7c1dcf1d23 (diff)
downloadop-kernel-dev-384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c.zip
op-kernel-dev-384be2b18a5f9475eab9ca2bdfa95cc1a04ef59c.tar.gz
Merge branch 'percpu-for-linus' into percpu-for-next
Conflicts: arch/sparc/kernel/smp_64.c arch/x86/kernel/cpu/perf_counter.c arch/x86/kernel/setup_percpu.c drivers/cpufreq/cpufreq_ondemand.c mm/percpu.c Conflicts in core and arch percpu codes are mostly from commit ed78e1e078dd44249f88b1dd8c76dafb39567161 which substituted many num_possible_cpus() with nr_cpu_ids. As for-next branch has moved all the first chunk allocators into mm/percpu.c, the changes are moved from arch code to mm/percpu.c. Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/video/atmel_lcdfb.c')
-rw-r--r--drivers/video/atmel_lcdfb.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/video/atmel_lcdfb.c b/drivers/video/atmel_lcdfb.c
index cb88394..da05f08 100644
--- a/drivers/video/atmel_lcdfb.c
+++ b/drivers/video/atmel_lcdfb.c
@@ -261,6 +261,9 @@ static inline void atmel_lcdfb_free_video_memory(struct atmel_lcdfb_info *sinfo)
/**
* atmel_lcdfb_alloc_video_memory - Allocate framebuffer memory
* @sinfo: the frame buffer to allocate memory for
+ *
+ * This function is called only from the atmel_lcdfb_probe()
+ * so no locking by fb_info->mm_lock around smem_len setting is needed.
*/
static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
{
@@ -270,9 +273,7 @@ static int atmel_lcdfb_alloc_video_memory(struct atmel_lcdfb_info *sinfo)
smem_len = (var->xres_virtual * var->yres_virtual
* ((var->bits_per_pixel + 7) / 8));
- mutex_lock(&info->mm_lock);
info->fix.smem_len = max(smem_len, sinfo->smem_len);
- mutex_unlock(&info->mm_lock);
info->screen_base = dma_alloc_writecombine(info->device, info->fix.smem_len,
(dma_addr_t *)&info->fix.smem_start, GFP_KERNEL);
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