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-rw-r--r--drivers/block/paride/pg.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c
index 4a27b1de5fc..2ce3dfd7e6b 100644
--- a/drivers/block/paride/pg.c
+++ b/drivers/block/paride/pg.c
@@ -581,7 +581,7 @@ static ssize_t pg_write(struct file *filp, const char __user *buf, size_t count,
if (hdr.magic != PG_MAGIC)
return -EINVAL;
- if (hdr.dlen > PG_MAX_DATA)
+ if (hdr.dlen < 0 || hdr.dlen > PG_MAX_DATA)
return -EINVAL;
if ((count - hs) > PG_MAX_DATA)
return -EINVAL;