crypto: msm: Fix null pointer dereference



Fixing possible null pointer dereference of sg_src
when nbytes exceed.

Change-Id: I91a2a274f11646bc65c4eb0d14a82d4ed81f4e42
Signed-off-by: Tanwee Kausar <tkausar@codeaurora.org>

parent 734edfb3

drivers/crypto/msm/qce50.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -2435,10 +2435,7 @@ static int _qce_sps_add_sg_data(struct qce_device *pce_dev,
		struct sps_iovec *iovec = sps_bam_pipe->iovec +
		sps_bam_pipe->iovec_count;

		if (!sg_src)
		return -ENOENT;

		while (nbytes > 0) {
		while (nbytes > 0 && sg_src) {
		len = min(nbytes, sg_dma_len(sg_src));
		nbytes -= len;
		addr = sg_dma_address(sg_src);