4 files changed, 24 insertions, 7 deletions

diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index a82e3756a72..64449cb8f87 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -375,6 +375,7 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
         }
 
         if (runtime->no_period_wakeup) {
+                snd_pcm_sframes_t xrun_threshold;
                 /*
                  * Without regular period interrupts, we have to check
                  * the elapsed time to detect xruns.
@@ -383,7 +384,8 @@ static int snd_pcm_update_hw_ptr0(struct snd_pcm_substream *substream,
                 if (jdelta < runtime->hw_ptr_buffer_jiffies / 2)
                         goto no_delta_check;
                 hdelta = jdelta - delta * HZ / runtime->rate;
-                while (hdelta > runtime->hw_ptr_buffer_jiffies / 2 + 1) {
+                xrun_threshold = runtime->hw_ptr_buffer_jiffies / 2 + 1;
+                while (hdelta > xrun_threshold) {
                         delta += runtime->buffer_size;
                         hw_base += runtime->buffer_size;
                         if (hw_base >= runtime->boundary)
diff --git a/sound/firewire/speakers.c b/sound/firewire/speakers.c
index 0fce9218abb..5466de8527b 100644
--- a/sound/firewire/speakers.c
+++ b/sound/firewire/speakers.c
@@ -778,10 +778,9 @@ static int __devexit fwspk_remove(struct device *dev)
 {
         struct fwspk *fwspk = dev_get_drvdata(dev);
 
-        snd_card_disconnect(fwspk->card);
-
         mutex_lock(&fwspk->mutex);
         amdtp_out_stream_pcm_abort(&fwspk->stream);
+        snd_card_disconnect(fwspk->card);
         fwspk_stop_stream(fwspk);
         mutex_unlock(&fwspk->mutex);
 
diff --git a/sound/pci/ens1370.c b/sound/pci/ens1370.c
index 537cfba829a..863eafea691 100644
--- a/sound/pci/ens1370.c
+++ b/sound/pci/ens1370.c
@@ -229,6 +229,7 @@ MODULE_PARM_DESC(lineio, "Line In to Rear Out (0 = auto, 1 = force).");
 #define ES_REG_1371_CODEC 0x14  /* W/R: Codec Read/Write register address */
 #define   ES_1371_CODEC_RDY        (1<<31)      /* codec ready */
 #define   ES_1371_CODEC_WIP        (1<<30)      /* codec register access in progress */
+#define   EV_1938_CODEC_MAGIC      (1<<26)
 #define   ES_1371_CODEC_PIRD       (1<<23)      /* codec read/write select register */
 #define   ES_1371_CODEC_WRITE(a,d) ((((a)&0x7f)<<16)|(((d)&0xffff)<<0))
 #define   ES_1371_CODEC_READS(a)   ((((a)&0x7f)<<16)|ES_1371_CODEC_PIRD)
@@ -603,12 +604,18 @@ static void snd_es1370_codec_write(struct snd_ak4531 *ak4531,
 
 #ifdef CHIP1371
 
+static inline bool is_ev1938(struct ensoniq *ensoniq)
+{
+        return ensoniq->pci->device == 0x8938;
+}
+
 static void snd_es1371_codec_write(struct snd_ac97 *ac97,
                                    unsigned short reg, unsigned short val)
 {
         struct ensoniq *ensoniq = ac97->private_data;
-        unsigned int t, x;
+        unsigned int t, x, flag;
 
+        flag = is_ev1938(ensoniq) ? EV_1938_CODEC_MAGIC : 0;
         mutex_lock(&ensoniq->src_mutex);
         for (t = 0; t < POLL_COUNT; t++) {
                 if (!(inl(ES_REG(ensoniq, 1371_CODEC)) & ES_1371_CODEC_WIP)) {
@@ -630,7 +637,8 @@ static void snd_es1371_codec_write(struct snd_ac97 *ac97,
                                     0x00010000)
                                         break;
                         }
-                        outl(ES_1371_CODEC_WRITE(reg, val), ES_REG(ensoniq, 1371_CODEC));
+                        outl(ES_1371_CODEC_WRITE(reg, val) | flag,
+                             ES_REG(ensoniq, 1371_CODEC));
                         /* restore SRC reg */
                         snd_es1371_wait_src_ready(ensoniq);
                         outl(x, ES_REG(ensoniq, 1371_SMPRATE));
@@ -647,8 +655,9 @@ static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
                                             unsigned short reg)
 {
         struct ensoniq *ensoniq = ac97->private_data;
-        unsigned int t, x, fail = 0;
+        unsigned int t, x, flag, fail = 0;
 
+        flag = is_ev1938(ensoniq) ? EV_1938_CODEC_MAGIC : 0;
       __again:
         mutex_lock(&ensoniq->src_mutex);
         for (t = 0; t < POLL_COUNT; t++) {
@@ -671,7 +680,8 @@ static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
                                     0x00010000)
                                         break;
                         }
-                        outl(ES_1371_CODEC_READS(reg), ES_REG(ensoniq, 1371_CODEC));
+                        outl(ES_1371_CODEC_READS(reg) | flag,
+                             ES_REG(ensoniq, 1371_CODEC));
                         /* restore SRC reg */
                         snd_es1371_wait_src_ready(ensoniq);
                         outl(x, ES_REG(ensoniq, 1371_SMPRATE));
@@ -683,6 +693,11 @@ static unsigned short snd_es1371_codec_read(struct snd_ac97 *ac97,
                         /* now wait for the stinkin' data (RDY) */
                         for (t = 0; t < POLL_COUNT; t++) {
                                 if ((x = inl(ES_REG(ensoniq, 1371_CODEC))) & ES_1371_CODEC_RDY) {
+                                        if (is_ev1938(ensoniq)) {
+                                                for (t = 0; t < 100; t++)
+                                                        inl(ES_REG(ensoniq, CONTROL));
+                                                x = inl(ES_REG(ensoniq, 1371_CODEC));
+                                        }
                                         mutex_unlock(&ensoniq->src_mutex);
                                         return ES_1371_CODEC_READ(x);
                                 }
diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index d08cf31596f..69e33869a53 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -3034,6 +3034,7 @@ static struct snd_pci_quirk cxt5066_cfg_tbl[] = {
         SND_PCI_QUIRK(0x17aa, 0x21c5, "Thinkpad Edge 13", CXT5066_THINKPAD),
         SND_PCI_QUIRK(0x17aa, 0x21c6, "Thinkpad Edge 13", CXT5066_ASUS),
         SND_PCI_QUIRK(0x17aa, 0x215e, "Lenovo Thinkpad", CXT5066_THINKPAD),
+        SND_PCI_QUIRK(0x17aa, 0x21da, "Lenovo X220", CXT5066_THINKPAD),
         SND_PCI_QUIRK(0x17aa, 0x38af, "Lenovo G560", CXT5066_ASUS),
         SND_PCI_QUIRK_VENDOR(0x17aa, "Lenovo", CXT5066_IDEAPAD), /* Fallback for Lenovos without dock mic */
         {}