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Subject[PATCH 4/9] acpi: Replace weird use of PTR_RET.
Date
This functions is really weird.  It sets rc to -ENOMEM, then overrides
it. It was converted to PTR_RET in a1458187 when it should have
simply been rewritten.

This version makes it more explicit, with a single IS_ERR() test.

Cc: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Cc: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---
drivers/acpi/acpi_pad.c | 13 ++++++++-----
1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 27bb6a9..46e0b3c 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -231,16 +231,19 @@ static struct task_struct *ps_tsks[NR_CPUS];
static unsigned int ps_tsk_num;
static int create_power_saving_task(void)
{
- int rc = -ENOMEM;
+ int rc;

ps_tsks[ps_tsk_num] = kthread_run(power_saving_thread,
(void *)(unsigned long)ps_tsk_num,
"acpi_pad/%d", ps_tsk_num);
- rc = PTR_RET(ps_tsks[ps_tsk_num]);
- if (!rc)
- ps_tsk_num++;
- else
+
+ if (IS_ERR(ps_tsks[ps_tsk_num])) {
+ rc = PTR_ERR(ps_tsks[ps_tsk_num]);
ps_tsks[ps_tsk_num] = NULL;
+ } else {
+ rc = 0;
+ ps_tsk_num++;
+ }

return rc;
}
--
1.8.1.2


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