Merge tag 'omap-for-v5.11/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/soc

SoC changes for omaps for v5.11 merge window:

Several non-urgent fixes for various issues found by automated tests.
So far we have not been hitting any of these so these can wait for the
merge window no problem.

* tag 'omap-for-v5.11/soc-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
  ARM: OMAP1: clock: Use IS_ERR_OR_NULL() to clean code
  ARM: OMAP2+: Remove redundant null check before clk_prepare_enable/clk_disable_unprepare
  ARM: OMAP2+: Remove redundant assignment to variable ret
  ARM: OMAP2+: Fix kfree NULL pointer in omap2xxx_clkt_vps_init
  ARM: OMAP2+: Fix memleak in omap2xxx_clkt_vps_init

Link: https://lore.kernel.org/r/pull-1606462656-588116@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

arch/arm/mach-omap1/clock.c

@@ -612,7 +612,7 @@ int clk_enable(struct clk *clk)
 	unsigned long flags;
 	int ret;
 
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return -EINVAL;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
@@ -627,7 +627,7 @@ void clk_disable(struct clk *clk)
 {
 	unsigned long flags;
 
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
@@ -650,7 +650,7 @@ unsigned long clk_get_rate(struct clk *clk)
 	unsigned long flags;
 	unsigned long ret;
 
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return 0;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
@@ -670,7 +670,7 @@ long clk_round_rate(struct clk *clk, unsigned long rate)
 	unsigned long flags;
 	long ret;
 
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return 0;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
@@ -686,7 +686,7 @@ int clk_set_rate(struct clk *clk, unsigned long rate)
 	unsigned long flags;
 	int ret = -EINVAL;
 
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return ret;
 
 	spin_lock_irqsave(&clockfw_lock, flags);
@@ -791,7 +791,7 @@ void clk_preinit(struct clk *clk)
 
 int clk_register(struct clk *clk)
 {
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return -EINVAL;
 
 	/*
@@ -817,7 +817,7 @@ EXPORT_SYMBOL(clk_register);
 
 void clk_unregister(struct clk *clk)
 {
-	if (clk == NULL || IS_ERR(clk))
+	if (IS_ERR_OR_NULL(clk))
 		return;
 
 	mutex_lock(&clocks_mutex);

arch/arm/mach-omap2/clkt2xxx_virt_prcm_set.c

@@ -235,7 +235,7 @@ void omap2xxx_clkt_vps_init(void)
 
 	hw = kzalloc(sizeof(*hw), GFP_KERNEL);
 	if (!hw)
-		goto cleanup;
+		return;
 	init.name = "virt_prcm_set";
 	init.ops = &virt_prcm_set_ops;
 	init.parent_names = &parent_name;
@@ -244,9 +244,12 @@ void omap2xxx_clkt_vps_init(void)
 	hw->hw.init = &init;
 
 	clk = clk_register(NULL, &hw->hw);
+	if (IS_ERR(clk)) {
+		printk(KERN_ERR "Failed to register clock\n");
+		kfree(hw);
+		return;
+	}
+
 	clkdev_create(clk, "cpufreq_ck", NULL);
-	return;
-cleanup:
-	kfree(hw);
 }
 #endif

arch/arm/mach-omap2/display.c

@@ -385,8 +385,7 @@ int omap_dss_reset(struct omap_hwmod *oh)
 	}
 
 	for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
-		if (oc->_clk)
-			clk_prepare_enable(oc->_clk);
+		clk_prepare_enable(oc->_clk);
 
 	dispc_disable_outputs();
 
@@ -412,8 +411,7 @@ int omap_dss_reset(struct omap_hwmod *oh)
 		pr_debug("dss_core: softreset done\n");
 
 	for (i = oh->opt_clks_cnt, oc = oh->opt_clks; i > 0; i--, oc++)
-		if (oc->_clk)
-			clk_disable_unprepare(oc->_clk);
+		clk_disable_unprepare(oc->_clk);
 
 	r = (c == MAX_MODULE_SOFTRESET_WAIT) ? -ETIMEDOUT : 0;
 

arch/arm/mach-omap2/omap_device.c

@@ -334,10 +334,9 @@ struct omap_device *omap_device_alloc(struct platform_device *pdev,
 	struct omap_hwmod **hwmods;
 
 	od = kzalloc(sizeof(struct omap_device), GFP_KERNEL);
-	if (!od) {
-		ret = -ENOMEM;
+	if (!od)
 		goto oda_exit1;
-	}
+
 	od->hwmods_cnt = oh_cnt;
 
 	hwmods = kmemdup(ohs, sizeof(struct omap_hwmod *) * oh_cnt, GFP_KERNEL);