-EINTR is returned by various vchiq bulk transfer code paths
on receiving a fatal signal to the process. Since the process is
deemed to be terminated anyway, do not retry the bulk transfer
on -EINTR.
Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
---
.../interface/vchiq_arm/vchiq_arm.c | 74 +++++++------------
1 file changed, 25 insertions(+), 49 deletions(-)
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
index d5b23f3fee87..c44b4dc79c03 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.c
@@ -853,31 +853,19 @@ vchiq_bulk_transmit(struct vchiq_instance *instance, unsigned int handle, const
{
int ret;
- while (1) {
- switch (mode) {
- case VCHIQ_BULK_MODE_NOCALLBACK:
- case VCHIQ_BULK_MODE_CALLBACK:
- ret = vchiq_bulk_xfer_callback(instance, handle, (void *)data,
- NULL, size, mode, userdata,
- VCHIQ_BULK_TRANSMIT);
- break;
- case VCHIQ_BULK_MODE_BLOCKING:
- ret = vchiq_blocking_bulk_transfer(instance, handle, (void *)data, size,
- VCHIQ_BULK_TRANSMIT);
- break;
- default:
- return -EINVAL;
- }
-
- /*
- * vchiq_*_bulk_transfer() may return -EINTR, so we need
- * to implement a retry mechanism since this function is
- * supposed to block until queued
- */
- if (ret != -EINTR)
- break;
-
- msleep(1);
+ switch (mode) {
+ case VCHIQ_BULK_MODE_NOCALLBACK:
+ case VCHIQ_BULK_MODE_CALLBACK:
+ ret = vchiq_bulk_xfer_callback(instance, handle, (void *)data,
+ NULL, size, mode, userdata,
+ VCHIQ_BULK_TRANSMIT);
+ break;
+ case VCHIQ_BULK_MODE_BLOCKING:
+ ret = vchiq_blocking_bulk_transfer(instance, handle, (void *)data, size,
+ VCHIQ_BULK_TRANSMIT);
+ break;
+ default:
+ return -EINVAL;
}
return ret;
@@ -890,30 +878,18 @@ int vchiq_bulk_receive(struct vchiq_instance *instance, unsigned int handle,
{
int ret;
- while (1) {
- switch (mode) {
- case VCHIQ_BULK_MODE_NOCALLBACK:
- case VCHIQ_BULK_MODE_CALLBACK:
- ret = vchiq_bulk_xfer_callback(instance, handle, (void *)data, NULL,
- size, mode, userdata, VCHIQ_BULK_RECEIVE);
- break;
- case VCHIQ_BULK_MODE_BLOCKING:
- ret = vchiq_blocking_bulk_transfer(instance, handle, (void *)data, size,
- VCHIQ_BULK_RECEIVE);
- break;
- default:
- return -EINVAL;
- }
-
- /*
- * vchiq_*_bulk_transfer() may return -EINTR, so we need
- * to implement a retry mechanism since this function is
- * supposed to block until queued
- */
- if (ret != -EINTR)
- break;
-
- msleep(1);
+ switch (mode) {
+ case VCHIQ_BULK_MODE_NOCALLBACK:
+ case VCHIQ_BULK_MODE_CALLBACK:
+ ret = vchiq_bulk_xfer_callback(instance, handle, (void *)data, NULL,
+ size, mode, userdata, VCHIQ_BULK_RECEIVE);
+ break;
+ case VCHIQ_BULK_MODE_BLOCKING:
+ ret = vchiq_blocking_bulk_transfer(instance, handle, (void *)data, size,
+ VCHIQ_BULK_RECEIVE);
+ break;
+ default:
+ return -EINVAL;
}
return ret;
--
2.45.2