If we are asked for number of entries of an offset bigger than the sg list we should not crash. Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> --- drivers/staging/ccree/ssi_buffer_mgr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/ssi_buffer_mgr.c index 33b9709..cb3e235 100644 --- a/drivers/staging/ccree/ssi_buffer_mgr.c +++ b/drivers/staging/ccree/ssi_buffer_mgr.c @@ -94,7 +94,7 @@ static unsigned int cc_get_sgl_nents(struct device *dev, { unsigned int nents = 0; - while (nbytes) { + while (nbytes && sg_list) { if (sg_list->length) { nents++; /* get the number of bytes in the last entry */ -- 2.7.4