From 0c3ee078251b85812e585b5cf5d1635afd73f4e2 Mon Sep 17 00:00:00 2001 From: Ramax Lo Date: Tue, 14 Apr 2009 23:56:18 +0800 Subject: [PATCH] [ARM] S3C24XX: ADC: Check pending queue before freeing adc client Check pending queue and remove the adc client being released. Signed-off-by: Ramax Lo Signed-off-by: Ben Dooks --- arch/arm/plat-s3c24xx/adc.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/plat-s3c24xx/adc.c b/arch/arm/plat-s3c24xx/adc.c index bc6f6a14dd12..91adfa71c172 100644 --- a/arch/arm/plat-s3c24xx/adc.c +++ b/arch/arm/plat-s3c24xx/adc.c @@ -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); -- 2.20.1