From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Thu, 12 Mar 2020 11:31:54 +0000 (+0300)
Subject: spi: spi-nxp-fspi: Fix a NULL vs IS_ERR() check in probe
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=1a421ebab6bb5bf65001743ba9fef48e94fb345a;p=linux.git

spi: spi-nxp-fspi: Fix a NULL vs IS_ERR() check in probe

The platform_get_resource_byname() function returns NULL on error, it
doesn't return error pointers.

Fixes: d166a73503ef ("spi: fspi: dynamically alloc AHB memory")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200312113154.GC20562@mwanda
Signed-off-by: Mark Brown <broonie@kernel.org>
---

diff --git a/drivers/spi/spi-nxp-fspi.c b/drivers/spi/spi-nxp-fspi.c
index 019f40e2917cd..1ccda82da2063 100644
--- a/drivers/spi/spi-nxp-fspi.c
+++ b/drivers/spi/spi-nxp-fspi.c
@@ -1019,8 +1019,8 @@ static int nxp_fspi_probe(struct platform_device *pdev)
 
 	/* find the resources - controller memory mapped space */
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "fspi_mmap");
-	if (IS_ERR(res)) {
-		ret = PTR_ERR(res);
+	if (!res) {
+		ret = -ENODEV;
 		goto err_put_ctrl;
 	}