clk: clk-xgene: Adjust six checks for null pointers

The script “checkpatch.pl” pointed information out like the
following.

	Comparison to NULL could be written ...

Thus fix the affected source code places.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>

diff --git a/drivers/clk/clk-xgene.c b/drivers/clk/clk-xgene.c
index 3cc84a65f686ca446a369908228772900ed9a63c..531b030d4d4e7392cd827b9c9f40f5293d59b1f2 100644 (file)
--- a/drivers/clk/clk-xgene.c
+++ b/drivers/clk/clk-xgene.c
@@ -189,7 +189,7 @@ static void xgene_pllclk_init(struct device_node *np, enum xgene_pll_type pll_ty
        int version = xgene_pllclk_version(np);
 
        reg = of_iomap(np, 0);
-       if (reg == NULL) {
+       if (!reg) {
                pr_err("Unable to map CSR register for %pOF\n", np);
                return;
        }
@@ -465,7 +465,7 @@ static int xgene_clk_enable(struct clk_hw *hw)
        if (pclk->lock)
                spin_lock_irqsave(pclk->lock, flags);
 
-       if (pclk->param.csr_reg != NULL) {
+       if (pclk->param.csr_reg) {
                pr_debug("%s clock enabled\n", clk_hw_get_name(hw));
                /* First enable the clock */
                data = xgene_clk_read(pclk->param.csr_reg +
@@ -505,7 +505,7 @@ static void xgene_clk_disable(struct clk_hw *hw)
        if (pclk->lock)
                spin_lock_irqsave(pclk->lock, flags);
 
-       if (pclk->param.csr_reg != NULL) {
+       if (pclk->param.csr_reg) {
                pr_debug("%s clock disabled\n", clk_hw_get_name(hw));
                /* First put the CSR in reset */
                data = xgene_clk_read(pclk->param.csr_reg +
@@ -531,7 +531,7 @@ static int xgene_clk_is_enabled(struct clk_hw *hw)
        struct xgene_clk *pclk = to_xgene_clk(hw);
        u32 data = 0;
 
-       if (pclk->param.csr_reg != NULL) {
+       if (pclk->param.csr_reg) {
                pr_debug("%s clock checking\n", clk_hw_get_name(hw));
                data = xgene_clk_read(pclk->param.csr_reg +
                                        pclk->param.reg_clk_offset);
@@ -540,7 +540,7 @@ static int xgene_clk_is_enabled(struct clk_hw *hw)
                                                        "disabled");
        }
 
-       if (pclk->param.csr_reg == NULL)
+       if (!pclk->param.csr_reg)
                return 1;
        return data & pclk->param.reg_clk_mask ? 1 : 0;
 }
@@ -705,7 +705,7 @@ static void __init xgene_devclk_init(struct device_node *np)
                        break;
                }
                map_res = of_iomap(np, i);
-               if (map_res == NULL) {
+               if (!map_res) {
                        pr_err("Unable to map resource %d for %pOF\n", i, np);
                        goto err;
                }