Merge branch 'topic/asoc' into for-linus

[karo-tx-linux.git] / arch / arm / plat-s3c24xx / adc.c

diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c
index 9a5c767e0a426f05fe231d0f9beac2e8abf5facc..91adfa71c1724f30b55a5d72c5e8bd25f32321bf 100644 (file)
--- a/arch/arm/plat-s3c24xx/adc.c
+++ b/arch/arm/plat-s3c24xx/adc.c
@@ -100,7 +100,7 @@ static void s3c_adc_dbgshow(struct adc_device *adc)
                readl(adc->regs + S3C2410_ADCDLY));
 }
 
-void s3c_adc_try(struct adc_device *adc)
+static void s3c_adc_try(struct adc_device *adc)
 {
        struct s3c_adc_client *next = adc->ts_pend;
 
@@ -190,6 +190,23 @@ EXPORT_SYMBOL_GPL(s3c_adc_register);
 void s3c_adc_release(struct s3c_adc_client *client)
 {
        /* We should really check that nothing is in progress. */
+       if (adc_dev->cur == client)
+               adc_dev->cur = NULL;
+       if (adc_dev->ts_pend == client)
+               adc_dev->ts_pend = NULL;
+       else {
+               struct list_head *p, *n;
+               struct s3c_adc_client *tmp;
+
+               list_for_each_safe(p, n, &adc_pending) {
+                       tmp = list_entry(p, struct s3c_adc_client, pend);
+                       if (tmp == client)
+                               list_del(&tmp->pend);
+               }
+       }
+
+       if (adc_dev->cur == NULL)
+               s3c_adc_try(adc_dev);
        kfree(client);
 }
 EXPORT_SYMBOL_GPL(s3c_adc_release);