drivers: power: report battery voltage in AOSP compatible format

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / dma / dmatest.c

diff --git a/drivers/dma/dmatest.c b/drivers/dma/dmatest.c
index d8ce4ecfef18e079336654b8a53ea89fd613cb44..e88ded2c8d2f1bc8d73223ef2175fcbd391be5bf 100644 (file)
--- a/drivers/dma/dmatest.c
+++ b/drivers/dma/dmatest.c
@@ -716,8 +716,7 @@ static int dmatest_func(void *data)
                }
                dma_async_issue_pending(chan);
 
-               wait_event_freezable_timeout(done_wait,
-                                            done.done || kthread_should_stop(),
+               wait_event_freezable_timeout(done_wait, done.done,
                                             msecs_to_jiffies(params->timeout));
 
                status = dma_async_is_tx_complete(chan, cookie, NULL, NULL);
@@ -997,7 +996,6 @@ static void stop_threaded_test(struct dmatest_info *info)
 static int __restart_threaded_test(struct dmatest_info *info, bool run)
 {
        struct dmatest_params *params = &info->params;
-       int ret;
 
        /* Stop any running test first */
        __stop_threaded_test(info);
@@ -1012,13 +1010,23 @@ static int __restart_threaded_test(struct dmatest_info *info, bool run)
        memcpy(params, &info->dbgfs_params, sizeof(*params));
 
        /* Run test with new parameters */
-       ret = __run_threaded_test(info);
-       if (ret) {
-               __stop_threaded_test(info);
-               pr_err("dmatest: Can't run test\n");
+       return __run_threaded_test(info);
+}
+
+static bool __is_threaded_test_run(struct dmatest_info *info)
+{
+       struct dmatest_chan *dtc;
+
+       list_for_each_entry(dtc, &info->channels, node) {
+               struct dmatest_thread *thread;
+
+               list_for_each_entry(thread, &dtc->threads, node) {
+                       if (!thread->done)
+                               return true;
+               }
        }
 
-       return ret;
+       return false;
 }
 
 static ssize_t dtf_write_string(void *to, size_t available, loff_t *ppos,
@@ -1091,22 +1099,10 @@ static ssize_t dtf_read_run(struct file *file, char __user *user_buf,
 {
        struct dmatest_info *info = file->private_data;
        char buf[3];
-       struct dmatest_chan *dtc;
-       bool alive = false;
 
        mutex_lock(&info->lock);
-       list_for_each_entry(dtc, &info->channels, node) {
-               struct dmatest_thread *thread;
-
-               list_for_each_entry(thread, &dtc->threads, node) {
-                       if (!thread->done) {
-                               alive = true;
-                               break;
-                       }
-               }
-       }
 
-       if (alive) {
+       if (__is_threaded_test_run(info)) {
                buf[0] = 'Y';
        } else {
                __stop_threaded_test(info);
@@ -1132,7 +1128,12 @@ static ssize_t dtf_write_run(struct file *file, const char __user *user_buf,
 
        if (strtobool(buf, &bv) == 0) {
                mutex_lock(&info->lock);
-               ret = __restart_threaded_test(info, bv);
+
+               if (__is_threaded_test_run(info))
+                       ret = -EBUSY;
+               else
+                       ret = __restart_threaded_test(info, bv);
+
                mutex_unlock(&info->lock);
        }