From: Jerry Huang <chang-ming.hu...@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.hu...@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;
--
1.7.9.5
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