From: Tom Rix <trix@xxxxxxxxxx>
clang static analysis reports this representative problem
transport.c:495:15: warning: Assigned value is garbage or
undefined
length_left -= partial;
^ ~~~~~~~
partial is set only when usb_stor_bulk_transfer_sglist()
is successful.
So set partial on entry to 0.
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
---
drivers/usb/storage/transport.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/usb/storage/transport.c b/drivers/usb/storage/transport.c
index 238a8088e17f..044429717dcc 100644
--- a/drivers/usb/storage/transport.c
+++ b/drivers/usb/storage/transport.c
@@ -414,6 +414,9 @@ static int usb_stor_bulk_transfer_sglist(struct us_data *us, unsigned int pipe,
{
int result;
+ if (act_len)
+ *act_len = 0;
+
/* don't submit s-g requests during abort processing */
if (test_bit(US_FLIDX_ABORTING, &us->dflags))
return USB_STOR_XFER_ERROR;
--
2.18.1
