qseecom: Improve app_block_wq processing

remove interrupt signal mask before waiting, and
Wake up all threads waiting in app_block_wq.

Change-Id: I0b441c2fd8a4f829c356492a8facd56f92c97884
Signed-off-by: Zhen Kong <zkong@codeaurora.org>
Signed-off-by: Forenche <prahul2003@gmail.com>

drivers/misc/qseecom.c

@@ -2519,12 +2519,8 @@ static void __qseecom_reentrancy_check_if_no_app_blocked(uint32_t smc_id)
  /* thread sleep until this app unblocked */
  while (qseecom.app_block_ref_cnt > 0) {
  mutex_unlock(&app_access_lock);
- do {
- if (!wait_event_interruptible(
- qseecom.app_block_wq,
- (qseecom.app_block_ref_cnt == 0)))
- break;
- } while (1);
+ wait_event_interruptible(qseecom.app_block_wq,
+ (!qseecom.app_block_ref_cnt));
  mutex_lock(&app_access_lock);
  }
  }
@@ -2543,13 +2539,9 @@ static void __qseecom_reentrancy_check_if_this_app_blocked(
  while (ptr_app->app_blocked || qseecom.app_block_ref_cnt > 1) {
  /* thread sleep until this app unblocked */
  mutex_unlock(&app_access_lock);
- do {
- if (!wait_event_interruptible(
- qseecom.app_block_wq,
- (!ptr_app->app_blocked &&
- qseecom.app_block_ref_cnt <= 1)))
- break;
- } while (1);
+ wait_event_interruptible(qseecom.app_block_wq,
+ (!ptr_app->app_blocked &&
+ qseecom.app_block_ref_cnt <= 1));
  mutex_lock(&app_access_lock);
  }
  ptr_app->check_block--;