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Message-ID: <dc16bfba-ba55-c478-aada-7bed4c3ece51@users.sourceforge.net>
Date: Tue, 11 Apr 2017 20:30:13 +0200
From: SF Markus Elfring <elfring@...rs.sourceforge.net>
To: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jslaby@...e.com>
Cc: LKML <linux-kernel@...r.kernel.org>,
kernel-janitors@...r.kernel.org
Subject: [PATCH 2/2] tty-goldfish: Adjust five checks for null pointers
From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 11 Apr 2017 20:15:30 +0200
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
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@...rs.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
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