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usb: sisusb_con: Use array_size() helper in memcpy()

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Use array_size() helper instead of the open-coded version in memcpy().
These sorts of multiplication factors need to be wrapped in array_size().

This issue was found with the help of Coccinelle and, audited and fixed
manually.

Addresses-KSPP-ID: https://github.com/KSPP/linux/issues/83
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://lore.kernel.org/r/20200615231827.GA21348@embeddedor
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo A. R. Silva 2020-06-15 18:18:27 -05:00 committed by Greg Kroah-Hartman
parent 9ffcc3053f
commit 153de2d66e
1 changed files with 1 additions and 1 deletions
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2
drivers/usb/misc/sisusbvga/sisusb_con.c
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@ -1226,7 +1226,7 @@ sisusbcon_font_set(struct vc_data *c, struct console_font *font,
sisusb->font_backup = vmalloc(array_size(charcount, 32));
if (sisusb->font_backup) {
memcpy(sisusb->font_backup, font->data, charcount * 32);
memcpy(sisusb->font_backup, font->data, array_size(charcount, 32));
sisusb->font_backup_size = charcount;
sisusb->font_backup_height = font->height;
sisusb->font_backup_512 = (charcount == 512) ? 1 : 0;