From: Jerry Huang Chang-Ming.Huang@freescale.com
In order to calculate the capability, we use the below expression to check: ((dev_desc->lba * dev_desc->blksz)>0L) If the capability is greater than 4GB (e.g. 8GB = 8 * 1024 * 104 * 1024), the result will overflow, the low 32bit may be zero.
Therefore, change to check each variable to fix this potential issue.
Signed-off-by: Jerry Huang Chang-Ming.Huang@freescale.com --- disk/part.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/disk/part.c b/disk/part.c index 4646f68..7bdc90e 100644 --- a/disk/part.c +++ b/disk/part.c @@ -199,7 +199,7 @@ void dev_print (block_dev_desc_t *dev_desc) break; } puts ("\n"); - if ((dev_desc->lba * dev_desc->blksz)>0L) { + if (dev_desc->lba > 0L && dev_desc->blksz > 0L) { ulong mb, mb_quot, mb_rem, gb, gb_quot, gb_rem; lbaint_t lba;