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authorTakashi Iwai <tiwai@suse.de>2014-02-20 01:50:32 -0500
committerTakashi Iwai <tiwai@suse.de>2014-02-20 01:50:32 -0500
commitf31f40be8f82d5eeb4ca084f9ac0f11ca265876b (patch)
tree6fce9ac78045249084d641945e094dcaea72d265 /kernel/trace/ring_buffer.c
parent13c12dbe3a2ce17227f7ddef652b6a53c78fa51f (diff)
parent895be5b31e5175bef575008aadb4f0a27b850daa (diff)
Merge tag 'asoc-v3.14-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v3.14 A few fixes, all driver speccific ones. The DaVinci ones aren't as clear as they should be from the subject lines on the commits but they fix issues which will prevent correct operation in some use cases and only affect that particular driver so are reasonably safe.
Diffstat (limited to 'kernel/trace/ring_buffer.c')
-rw-r--r--kernel/trace/ring_buffer.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index 294b8a271a04..fc4da2d97f9b 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -2397,6 +2397,13 @@ __rb_reserve_next(struct ring_buffer_per_cpu *cpu_buffer,
2397 write &= RB_WRITE_MASK; 2397 write &= RB_WRITE_MASK;
2398 tail = write - length; 2398 tail = write - length;
2399 2399
2400 /*
2401 * If this is the first commit on the page, then it has the same
2402 * timestamp as the page itself.
2403 */
2404 if (!tail)
2405 delta = 0;
2406
2400 /* See if we shot pass the end of this buffer page */ 2407 /* See if we shot pass the end of this buffer page */
2401 if (unlikely(write > BUF_PAGE_SIZE)) 2408 if (unlikely(write > BUF_PAGE_SIZE))
2402 return rb_move_tail(cpu_buffer, length, tail, 2409 return rb_move_tail(cpu_buffer, length, tail,