diff options
| author | Vladimir Oltean <[email protected]> | 2023-09-06 17:16:09 +0300 |
|---|---|---|
| committer | Jakub Kicinski <[email protected]> | 2023-09-07 11:19:42 -0700 |
| commit | 1b36955cc048c8ff6ba448dbf4be0e52f59f2963 (patch) | |
| tree | c0a05d117fe6a4743c521e62dd9ba6d1f6a2d8b9 | |
| parent | 6afcf0fb92701487421aa73c692855aa70fbc796 (diff) | |
net: enetc: distinguish error from valid pointers in enetc_fixup_clear_rss_rfs()
enetc_psi_create() returns an ERR_PTR() or a valid station interface
pointer, but checking for the non-NULL quality of the return code blurs
that difference away. So if enetc_psi_create() fails, we call
enetc_psi_destroy() when we shouldn't. This will likely result in
crashes, since enetc_psi_create() cleans up everything after itself when
it returns an ERR_PTR().
Fixes: f0168042a212 ("net: enetc: reimplement RFS/RSS memory clearing as PCI quirk")
Reported-by: Dan Carpenter <[email protected]>
Closes: https://lore.kernel.org/netdev/[email protected]/
Suggested-by: Dan Carpenter <[email protected]>
Signed-off-by: Vladimir Oltean <[email protected]>
Reviewed-by: Simon Horman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jakub Kicinski <[email protected]>
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_pf.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c index e0a4cb7e3f50..c153dc083aff 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -1402,7 +1402,7 @@ static void enetc_fixup_clear_rss_rfs(struct pci_dev *pdev) return; si = enetc_psi_create(pdev); - if (si) + if (!IS_ERR(si)) enetc_psi_destroy(pdev); } DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PF, |