commit 66b9298878742f08cb6e79b7c7d5632d782fd1e1 (i2c: omap: switch over
to do {} while loop) changed the interrupt handler to abort transfers
in case interrupt serviced 100 times but commit's comment states that
"No functional changes otherwise.".
Also, original commit could report status 0 (no error) on aborted transfers.
The patch restore original logic. In case interrupt serviced 100 times just
quit interrupt handler and don't abort active transfer.
Signed-off-by: Alexander Kochetkov <al.kochet@xxxxxxxxx>
---
drivers/i2c/busses/i2c-omap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/i2c/busses/i2c-omap.c b/drivers/i2c/busses/i2c-omap.c
index 9af7095..34b9011 100644
--- a/drivers/i2c/busses/i2c-omap.c
+++ b/drivers/i2c/busses/i2c-omap.c
@@ -920,7 +920,7 @@ omap_i2c_isr_thread(int this_irq, void *dev_id)
dev_dbg(dev->dev, "IRQ (ISR = 0x%04x)\n", stat);
if (count++ == 100) {
dev_warn(dev->dev, "Too much work in one IRQ\n");
- break;
+ goto out;
}
if (stat & OMAP_I2C_STAT_NACK) {
--
1.7.9.5
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