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-rw-r--r--arch/arm/plat-s3c24xx/adc.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c
index 9a5c767e0a4..91adfa71c17 100644
--- 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);