phy: omap-usb2: fix devm_ioremap_resource error detection code
authorHimangi Saraogi <himangi774@gmail.com>
Thu, 10 Jul 2014 06:25:00 +0000 (11:55 +0530)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Sat, 12 Jul 2014 01:23:49 +0000 (18:23 -0700)
commit3df9fcd59fd829da046ca63518ad8e51482a39e0
tree8a6a1b9a561bbd9113db4ec488c0ab612067fdab
parent9820ccba4b1e9c0cdacf254a7be8616357086ebc
phy: omap-usb2: fix devm_ioremap_resource error detection code

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 <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/phy/phy-omap-usb2.c