Re: [PATCH] coccinelle: check for casting malloc output

On Sun, Apr 19, 2020 at 11:07:34AM +0200, Heinrich Schuchardt wrote:

Casting the (void *) output of memory allocation functions before assignment like in

sata->cmd_hdr_tbl_offset = (void *)malloc(length + align);

is useless.

Adopt the Linux kernel script scripts/coccinelle/api/alloc/alloc_cast.cocci.

Now 'make coccicheck' generates warnings like:

./drivers/ata/fsl_sata.c:143:29-33: WARNING: casting value returned by memory allocation function to (void *) is useless.

Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de

Applied to u-boot/master, thanks!