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Commit 1d239e70 authored by Maya Erez's avatar Maya Erez
Browse files

usb: host: Verify sg before accessing it in qh_urb_transaction 



Fix code quality issues found by the automatic checking tool.
Verify safe access to sg in qh_urb_transaction.

Change-Id: I6ce40e8548449aebd628c72bc2b9cda1b2861ba9
CRs-Fixed: 566927
Signed-off-by: default avatarDanny Segal <dsegal@codeaurora.org>
Signed-off-by: default avatarMaya Erez <merez@codeaurora.org>
parent c5b954d0

drivers/usb/host/ehci-q.c

+1 −1
Original line number Diff line number Diff line
@@ -683,7 +683,7 @@ qh_urb_transaction ( 
		if ((maxpacket & (this_qtd_len + (maxpacket - 1))) == 0)

			token ^= QTD_TOGGLE;



		if (likely(this_sg_len <= 0)) {

		if (likely(sg && (this_sg_len <= 0))) {

			if (--i <= 0 || len <= 0)

				break;

			sg = sg_next(sg);