Re: [PATCH] drivers/ata: Fix kernel pointer leak

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On 29.09.2021 15:16, Guo Zhi wrote:

   I'd recommend the subject prefix to be just "pata_atp867x: "...

Pointers should be printed with %p or %px rather than cast to
'unsigned long' and pinted with %lx

   Printed.

Change %lx to %p to print the secured pointer.

Signed-off-by: Guo Zhi <qtxuning1999@xxxxxxxxxxx>
---
  drivers/ata/pata_atp867x.c | 10 +++++-----
  1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c
index 2bc5fc81efe3..c32b95f48e50 100644
--- a/drivers/ata/pata_atp867x.c
+++ b/drivers/ata/pata_atp867x.c
@@ -447,11 +447,11 @@ static int atp867x_ata_pci_sff_init_host(struct ata_host *host)
  #ifdef	ATP867X_DEBUG
  		atp867x_check_ports(ap, i);
  #endif
-		ata_port_desc(ap, "cmd 0x%lx ctl 0x%lx",
-			(unsigned long)ioaddr->cmd_addr,
-			(unsigned long)ioaddr->ctl_addr);
-		ata_port_desc(ap, "bmdma 0x%lx",
-			(unsigned long)ioaddr->bmdma_addr);
+		ata_port_desc(ap, "cmd 0x%p ctl 0x%p",
+			ioaddr->cmd_addr,

   This line shouldn't be broken up, it's not long at all.

+			ioaddr->ctl_addr);
+		ata_port_desc(ap, "bmdma 0x%p",
+			ioaddr->bmdma_addr);

Hmm, I've looked at the driver and got an imperession it only uses the I/O ports, not MMIO...

[...]

MBR, Sergey



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