From c0d5b8cf50c9842d0efcfb14871e58f42c6576e6 Mon Sep 17 00:00:00 2001 From: Hariprasad Shenai Date: Wed, 10 Sep 2014 17:44:29 +0530 Subject: [PATCH] cxgb4: Fix t4_flash_erase_sectors() to throw an error when requested to erase sectors which aren't in the FLASH Based on original work by Casey Leedom Signed-off-by: Hariprasad Shenai Signed-off-by: David S. Miller --- drivers/net/ethernet/chelsio/cxgb4/t4_hw.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c index 7d4cc28ca365..586a5f1fba0f 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_hw.c @@ -1099,6 +1099,9 @@ static int t4_flash_erase_sectors(struct adapter *adapter, int start, int end) { int ret = 0; + if (end >= adapter->params.sf_nsec) + return -EINVAL; + while (start <= end) { if ((ret = sf1_write(adapter, 1, 0, 1, SF_WR_ENABLE)) != 0 || (ret = sf1_write(adapter, 4, 0, 1, -- 2.20.1