Messages in this thread | | | Date | Tue, 12 Mar 2013 11:05:57 +0000 | From | Russell King - ARM Linux <> | Subject | Re: [PATCH] mach_omap2: use PTR_RET instead of IS_ERR + PTR_ERR |
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On Tue, Mar 12, 2013 at 09:58:29AM +0200, Silviu-Mihai Popescu wrote: > This uses PTR_RET instead of IS_ERR and PTR_ERR in order to increase > readability. > > Signed-off-by: Silviu-Mihai Popescu <silviupopescu1990@gmail.com> > --- > arch/arm/mach-omap2/devices.c | 4 ++-- > arch/arm/mach-omap2/fb.c | 5 +---- > arch/arm/mach-omap2/gpmc.c | 2 +- > arch/arm/mach-omap2/pmu.c | 5 +---- > 4 files changed, 5 insertions(+), 11 deletions(-) > > diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c > index 1ec7f05..2a0816e 100644 > --- a/arch/arm/mach-omap2/devices.c > +++ b/arch/arm/mach-omap2/devices.c > @@ -66,7 +66,7 @@ static int __init omap3_l3_init(void) > > WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name); > > - return IS_ERR(pdev) ? PTR_ERR(pdev) : 0; > + return PTR_RET(pdev);
This is incorrect.
The return value will be tested for < 0. Kernel pointers in general are all above 3GB, and so are all "< 0".
I'm afraid none of these changes stuff is an improvement - they all introduce bugs.
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