[PATCH] ARM: OMAP2: Delete unnecessary checks before three function calls

SF Markus Elfring
2015-06-30T12:10:50Z

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Tue, 30 Jun 2015 14:00:16 +0200

The functions clk_disable(), of_node_put() and omap_device_delete() test
whether their argument is NULL and then return immediately.
Thus the test around the call is not needed.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
arch/arm/mach-omap2/omap_device.c | 3 +--
arch/arm/mach-omap2/omap_hwmod.c | 5 +----
arch/arm/mach-omap2/timer.c | 3 +--
3 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/arch/arm/mach-omap2/omap_device.c b/arch/arm/mach-omap2/omap_device.c
index 4cb8fd9..196366e 100644
--- a/arch/arm/mach-omap2/omap_device.c
+++ b/arch/arm/mach-omap2/omap_device.c
@@ -193,8 +193,7 @@ static int _omap_device_notifier_call(struct notifier_block *nb,

switch (event) {
case BUS_NOTIFY_DEL_DEVICE:
- if (pdev->archdata.od)
- omap_device_delete(pdev->archdata.od);
+ omap_device_delete(pdev->archdata.od);
break;
case BUS_NOTIFY_ADD_DEVICE:
if (pdev->dev.of_node)
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index d78c12e..1091ee7 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -921,10 +921,7 @@ static int _disable_clocks(struct omap_hwmod *oh)
int i = 0;

pr_debug("omap_hwmod: %s: disabling clocks\n", oh->name);
-
- if (oh->_clk)
- clk_disable(oh->_clk);
-
+ clk_disable(oh->_clk);
p = oh->slave_ports.next;

while (i < oh->slaves_cnt) {
diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c
index cac46d8..15448221 100644
--- a/arch/arm/mach-omap2/timer.c
+++ b/arch/arm/mach-omap2/timer.c
@@ -208,8 +208,7 @@ static void __init omap_dmtimer_init(void)
/* If we are a secure device, remove any secure timer nodes */
if ((omap_type() != OMAP2_DEVICE_TYPE_GP)) {
np = omap_get_timer_dt(omap_timer_match, "ti,timer-secure");
- if (np)
- of_node_put(np);
+ of_node_put(np);
}
}

--
2.4.5