[PATCH] mtd: lpddr_cmds: Added literal suffix
Denis Arefev
arefev at swemel.ru
Thu Aug 24 06:02:15 PDT 2023
The value of an arithmetic expression
1 << lpddr->qinfo->DevSizeShift is subject to overflow
due to a failure to cast operands to a larger data
type before performing arithmetic
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Signed-off-by: Denis Arefev <arefev at swemel.ru>
---
drivers/mtd/lpddr/lpddr_cmds.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index 3c3939bc2dad..14e36ae71958 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -61,7 +61,7 @@ struct mtd_info *lpddr_cmdset(struct map_info *map)
mtd->_point = lpddr_point;
mtd->_unpoint = lpddr_unpoint;
}
- mtd->size = 1 << lpddr->qinfo->DevSizeShift;
+ mtd->size = 1ULL << lpddr->qinfo->DevSizeShift;
mtd->erasesize = 1 << lpddr->qinfo->UniformBlockSizeShift;
mtd->writesize = 1 << lpddr->qinfo->BufSizeShift;
--
2.25.1
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