[PATCH 2/2] tty-goldfish: Adjust five checks for null pointers

[SF Markus Elfring]

From: Markus Elfring <elfr...@users.sourceforge.net>
Date: Tue, 11 Apr 2017 20:15:30 +0200
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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/tty/goldfish.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/tty/goldfish.c b/drivers/tty/goldfish.c
index b92c3312ecd2..a07e5b01c279 100644
--- a/drivers/tty/goldfish.c
+++ b/drivers/tty/goldfish.c
@@ -182,12 +182,12 @@ static int goldfish_tty_create_driver(void)
 
        goldfish_ttys = kcalloc(goldfish_tty_line_count, sizeof(*goldfish_ttys),
                                GFP_KERNEL);
-       if (goldfish_ttys == NULL) {
+       if (!goldfish_ttys) {
                ret = -ENOMEM;
                goto err_alloc_goldfish_ttys_failed;
        }
        tty = alloc_tty_driver(goldfish_tty_line_count);
-       if (tty == NULL) {
+       if (!tty) {
                ret = -ENOMEM;
                goto err_alloc_tty_driver_failed;
        }
@@ -235,15 +235,15 @@ static int goldfish_tty_probe(struct platform_device 
*pdev)
        unsigned int line;
 
        r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-       if (r == NULL)
+       if (!r)
                return -EINVAL;
 
        base = ioremap(r->start, 0x1000);
-       if (base == NULL)
+       if (!base)
                pr_err("goldfish_tty: unable to remap base\n");
 
        r = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-       if (r == NULL)
+       if (!r)
                goto err_unmap;
 
        irq = r->start;
-- 
2.12.2