media: Staging: media: atomisp: Use kcalloc instead of kzalloc

Use kcalloc instead of kzalloc to check for an overflow before
multiplication. Done using the following semantic patch by
coccinelle.

http://coccinelle.lip6.fr/rules/kzalloc.cocci

Signed-off-by: Srishti Sharma <[e-mail]>
Signed-off-by: Sakari Ailus <[e-mail]>
Signed-off-by: Mauro Carvalho Chehab <[e-mail]>

drivers/staging/media/atomisp/pci/atomisp2/css2400/sh_css_firmware.c

···
 		sh_css_blob_info = NULL;
 	}
 
-	fw_minibuffer = kzalloc(sh_css_num_binaries * sizeof(struct fw_param), GFP_KERNEL);
+	fw_minibuffer = kcalloc(sh_css_num_binaries, sizeof(struct fw_param),
+				GFP_KERNEL);
+
 	if (fw_minibuffer == NULL)
 		return IA_CSS_ERR_CANNOT_ALLOCATE_MEMORY;