From: Himangi Saraogi <[email protected]>

devm_ioremap_resource returns an ERR_PTR value, not NULL, on failure.

A simplified version of the semantic match that finds this problem is as
follows:

// <smpl>
@@
expression e,e1;
statement S;
@@

*e = devm_ioremap_resource(...);
if (!e1) S

// </smpl>

Signed-off-by: Himangi Saraogi <[email protected]>
Acked-by: Julia Lawall <[email protected]>
Signed-off-by: Kishon Vijay Abraham I <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: sam-the-6 <[email protected]>
---
 drivers/phy/phy-omap-usb2.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 7007c11..2063d54 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -233,8 +233,8 @@ static int omap_usb2_probe(struct platform_device *pdev)
        if (phy_data->flags & OMAP_USB2_CALIBRATE_FALSE_DISCONNECT) {
                res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
                phy->phy_base = devm_ioremap_resource(&pdev->dev, res);
-               if (!phy->phy_base)
-                       return -ENOMEM;
+               if (IS_ERR(phy->phy_base))
+                       return PTR_ERR(phy->phy_base);
                phy->flags |= OMAP_USB2_CALIBRATE_FALSE_DISCONNECT;
        }
 
-- 
1.7.10.4

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