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cxgb4: dont touch blocked freelist bitmap after free

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When adapter init fails, the blocked freelist bitmap is already freed
up and should not be touched. So, move the bitmap zeroing closer to
where it was successfully allocated. Also handle adapter init failure
unwind path immediately and avoid setting up RDMA memory windows.

Fixes: 5b377d114f ("cxgb4: Add debugfs facility to inject FL starvation")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rahul Lakkireddy 2021-08-26 02:59:42 +05:30 committed by David S. Miller
parent 38d57551dd
commit 43fed4d48d
1 changed files with 3 additions and 4 deletions
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7
drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
View file

@ -5068,6 +5068,7 @@ static int adap_init0(struct adapter *adap, int vpd_skip)
ret = -ENOMEM;
goto bye;
}
bitmap_zero(adap->sge.blocked_fl, adap->sge.egr_sz);
#endif
params[0] = FW_PARAM_PFVF(CLIP_START);
@ -6788,13 +6789,11 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
setup_memwin(adapter);
err = adap_init0(adapter, 0);
#ifdef CONFIG_DEBUG_FS
bitmap_zero(adapter->sge.blocked_fl, adapter->sge.egr_sz);
#endif
setup_memwin_rdma(adapter);
if (err)
goto out_unmap_bar;
setup_memwin_rdma(adapter);
/* configure SGE_STAT_CFG_A to read WC stats */
if (!is_t4(adapter->params.chip))
t4_write_reg(adapter, SGE_STAT_CFG_A, STATSOURCE_T5_V(7) |