Commit 17d8dcf5 authored by Gustavo A. R. Silva's avatar Gustavo A. R. Silva Committed by Bartlomiej Zolnierkiewicz
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fbdev/fb.h: Use struct_size() helper in kzalloc() 



Make use of the struct_size() helper instead of an open-coded version
in order to avoid any potential type mistakes.

This code was detected with the help of Coccinelle and, audited and
fixed manually.

Signed-off-by: default avatarGustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: default avatarBartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200617175647.GA26370@embeddedor
parent fcf918b9

include/linux/fb.h

+3 −2
Original line number Diff line number Diff line
@@ -506,8 +506,9 @@ struct fb_info { 
};



static inline struct apertures_struct *alloc_apertures(unsigned int max_num) {

	struct apertures_struct *a = kzalloc(sizeof(struct apertures_struct)

			+ max_num * sizeof(struct aperture), GFP_KERNEL);

	struct apertures_struct *a;



	a = kzalloc(struct_size(a, ranges, max_num), GFP_KERNEL);

	if (!a)

		return NULL;

	a->count = max_num;