summaryrefslogtreecommitdiffstats
path: root/drivers/net/dm9k.c
diff options
context:
space:
mode:
authorSascha Hauer <s.hauer@pengutronix.de>2016-02-19 09:18:43 +0100
committerSascha Hauer <s.hauer@pengutronix.de>2016-02-23 08:14:16 +0100
commit8ee5479a28df0a3f3019419e46e9ee5c119a27bd (patch)
treeed1fb39fb0a39e89525581a1feeeede937556bb5 /drivers/net/dm9k.c
parentf1f8f5556ab94f4f8bedb97ad0199b2e63958c8b (diff)
downloadbarebox-8ee5479a28df0a3f3019419e46e9ee5c119a27bd.tar.gz
barebox-8ee5479a28df0a3f3019419e46e9ee5c119a27bd.tar.xz
driver: Fix return check of dev_request_mem_region
dev_request_mem_region returns an ERR_PTR, fix places which check for a NULL pointer instead. This patch has been generated with this semantic patch, written by me and improved by Andrey Smirnov: // <smpl> @@ expression e; expression e1; @@ e = dev_request_mem_region(...); ... -if (!e) - return e1; +if (IS_ERR(e)) + return PTR_ERR(e); @ rule1 @ expression e; @@ e = dev_request_mem_region(...); @@ expression rule1.e; identifier ret, label; constant errno; @@ if (!e) { ... ( - ret = -errno; + ret = PTR_ERR(e); ... goto label; | - return -errno; + return PTR_ERR(e); ) } @depends on rule1@ expression rule1.e; @@ - if (e == NULL) + if (IS_ERR(e)) { ... } // </smpl> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Diffstat (limited to 'drivers/net/dm9k.c')
-rw-r--r--drivers/net/dm9k.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/net/dm9k.c b/drivers/net/dm9k.c
index 1f1938d977..d813c8c275 100644
--- a/drivers/net/dm9k.c
+++ b/drivers/net/dm9k.c
@@ -809,14 +809,14 @@ static int dm9k_probe(struct device_d *dev)
goto err;
priv->iodata = dev_request_mem_region(dev, 1);
- if (!priv->iodata) {
- ret = -EBUSY;
+ if (IS_ERR(priv->iodata)) {
+ ret = PTR_ERR(priv->iodata);
goto err;
}
priv->iobase = dev_request_mem_region(dev, 0);
- if (!priv->iobase) {
- ret = -EBUSY;
+ if (IS_ERR(priv->iobase)) {
+ ret = PTR_ERR(priv->iobase);
goto err;
}