From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Fri, 13 Jan 2017 14:56:10 +0100
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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 <elfr...@users.sourceforge.net>
---
 drivers/spi/spi-ppc4xx.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/spi/spi-ppc4xx.c b/drivers/spi/spi-ppc4xx.c
index 967d94844b30..048794f043a0 100644
--- a/drivers/spi/spi-ppc4xx.c
+++ b/drivers/spi/spi-ppc4xx.c
@@ -229,7 +229,7 @@ static int spi_ppc4xx_setup(struct spi_device *spi)
                return -EINVAL;
        }
 
-       if (cs == NULL) {
+       if (!cs) {
                cs = kzalloc(sizeof *cs, GFP_KERNEL);
                if (!cs)
                        return -ENOMEM;
@@ -392,7 +392,7 @@ static int spi_ppc4xx_of_probe(struct platform_device *op)
        const unsigned int *clk;
 
        master = spi_alloc_master(dev, sizeof *hw);
-       if (master == NULL)
+       if (!master)
                return -ENOMEM;
        master->dev.of_node = np;
        platform_set_drvdata(op, master);
@@ -466,14 +466,14 @@ static int spi_ppc4xx_of_probe(struct platform_device *op)
 
        /* Get the clock for the OPB */
        opbnp = of_find_compatible_node(NULL, NULL, "ibm,opb");
-       if (opbnp == NULL) {
+       if (!opbnp) {
                dev_err(dev, "OPB: cannot find node\n");
                ret = -ENODEV;
                goto free_gpios;
        }
        /* Get the clock (Hz) for the OPB */
        clk = of_get_property(opbnp, "clock-frequency", NULL);
-       if (clk == NULL) {
+       if (!clk) {
                dev_err(dev, "OPB: no clock-frequency property set\n");
                of_node_put(opbnp);
                ret = -ENODEV;
-- 
2.11.0

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