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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/mtd/nand/nand_imx.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/mtd/nand/nand_imx.c')
-rw-r--r--drivers/mtd/nand/nand_imx.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/mtd/nand/nand_imx.c b/drivers/mtd/nand/nand_imx.c
index 00c05d00af..6cabae06a9 100644
--- a/drivers/mtd/nand/nand_imx.c
+++ b/drivers/mtd/nand/nand_imx.c
@@ -1168,9 +1168,9 @@ static int __init imxnd_probe(struct device_d *dev)
host->base = dev_request_mem_region(dev, 1);
host->main_area0 = host->base;
- if (!host->regs_ip) {
+ if (IS_ERR(host->regs_ip)) {
dev_err(dev, "no second mem region\n");
- err = -ENODEV;
+ err = PTR_ERR(host->regs_ip);
goto escan;
}