From: Thomas Meyer Date: Tue, 29 Nov 2011 21:08:00 +0000 (+0100) Subject: usb: gadget: Use kcalloc instead of kzalloc to allocate array X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9823a52539adce658f2414e33f2838b896ea4971;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git usb: gadget: Use kcalloc instead of kzalloc to allocate array The advantage of kcalloc is, that will prevent integer overflows which could result from the multiplication of number of elements and size and it is also a bit nicer to read. The semantic patch that makes this change is available in https://lkml.org/lkml/2011/11/25/107 Signed-off-by: Thomas Meyer Acked-by: Michal Nazarewicz <[4]mina86@mina86.com> Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c index acb38004eec0..da9d04815ea5 100644 --- a/drivers/usb/gadget/f_fs.c +++ b/drivers/usb/gadget/f_fs.c @@ -1408,7 +1408,7 @@ static int ffs_epfiles_create(struct ffs_data *ffs) ENTER(); count = ffs->eps_count; - epfiles = kzalloc(count * sizeof *epfiles, GFP_KERNEL); + epfiles = kcalloc(count, sizeof(*epfiles), GFP_KERNEL); if (!epfiles) return -ENOMEM; diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c index 860e15ac8f24..a18ebeed82b5 100644 --- a/drivers/usb/gadget/f_mass_storage.c +++ b/drivers/usb/gadget/f_mass_storage.c @@ -2775,7 +2775,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common, * Create the LUNs, open their backing files, and register the * LUN devices in sysfs. */ - curlun = kzalloc(nluns * sizeof *curlun, GFP_KERNEL); + curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL); if (unlikely(!curlun)) { rc = -ENOMEM; goto error_release;