crypto: talitos - Pass correct interrupt status to error handler

Since we ack early, the re-read interrupt status in talitos_error
may be already updated with a new value.  Pass the error ISR value
directly in order to report and handle the error based on the correct
error status.

Also remove unused error tasklet.

Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
Signed-off-by: Lee Nipper <lee.nipper@freescale.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/talitos.c b/drivers/crypto/talitos.c
index 2460766..c429f68 100644 (file)
--- a/drivers/crypto/talitos.c
+++ b/drivers/crypto/talitos.c
@@ -127,7 +127,6 @@ struct talitos_private {
 
        /* request callback tasklet */
        struct tasklet_struct done_task;
-       struct tasklet_struct error_task;
 
        /* list of registered algorithms */
        struct list_head alg_list;
@@ -469,16 +468,13 @@ static void report_eu_error(struct device *dev, int ch, struct talitos_desc *des
 /*
  * recover from error interrupts
  */
-static void talitos_error(unsigned long data)
+static void talitos_error(unsigned long data, u32 isr, u32 isr_lo)
 {
        struct device *dev = (struct device *)data;
        struct talitos_private *priv = dev_get_drvdata(dev);
        unsigned int timeout = TALITOS_TIMEOUT;
        int ch, error, reset_dev = 0, reset_ch = 0;
-       u32 isr, isr_lo, v, v_lo;
-
-       isr = in_be32(priv->reg + TALITOS_ISR);
-       isr_lo = in_be32(priv->reg + TALITOS_ISR_LO);
+       u32 v, v_lo;
 
        for (ch = 0; ch < priv->num_channels; ch++) {
                /* skip channels without errors */
@@ -566,7 +562,7 @@ static irqreturn_t talitos_interrupt(int irq, void *data)
        out_be32(priv->reg + TALITOS_ICR_LO, isr_lo);
 
        if (unlikely((isr & ~TALITOS_ISR_CHDONE) || isr_lo))
-               talitos_error((unsigned long)data);
+               talitos_error((unsigned long)data, isr, isr_lo);
        else
                if (likely(isr & TALITOS_ISR_CHDONE))
                        tasklet_schedule(&priv->done_task);
@@ -1391,7 +1387,6 @@ static int talitos_remove(struct of_device *ofdev)
        }
 
        tasklet_kill(&priv->done_task);
-       tasklet_kill(&priv->error_task);
 
        iounmap(priv->reg);
 
@@ -1454,7 +1449,6 @@ static int talitos_probe(struct of_device *ofdev,
        INIT_LIST_HEAD(&priv->alg_list);
 
        tasklet_init(&priv->done_task, talitos_done, (unsigned long)dev);
-       tasklet_init(&priv->error_task, talitos_error, (unsigned long)dev);
 
        priv->irq = irq_of_parse_and_map(np, 0);