Re: [PATCH staging] dgnc: remove useless cast on kzalloc()

From: Greg Kroah-Hartman
Date: Thu Sep 26 2013 - 12:28:03 EST

On Thu, Sep 26, 2013 at 10:12:23AM +0800, Fengguang Wu wrote:
> drivers/staging/dgnc/dgnc_driver.c:510:3-7: WARNING: casting value returned by k[cmz]alloc to (char *) is useless.
> drivers/staging/dgnc/dgnc_driver.c:502:2-19: WARNING: casting value returned by k[cmz]alloc to (struct dgnc_board *) is useless.
> Casting (void *) value returned by kmalloc is useless
> as mentioned in Documentation/CodingStyle, Chap 14.
> Generated by: coccinelle/api/alloc/drop_kmalloc_cast.cocci
> CC: Lidza Louina <lidza.louina@xxxxxxxxx>
> CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
> ---
> drivers/staging/dgnc/dgnc_driver.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)

As Jingoo sent this a few minutes before you did, and also cleaned up
another cast that you missed, I've added your signed-off-by to his
patch, as they were the same (although yours didn't apply and his


greg k-h
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