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bnx2x: Fix memory leak

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There exists an `allocation race' between the CNIC and bnx2x drivers,
in which both drivers allocate the same t2 memory while disregarding a possible
previous allocation.

Additionally, due to the current order of memory releases, some of the
ILT memory in the driver is not released correctly when unloading the driver.

Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Ariel Elior <ariele@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuval Mintz 2013-04-24 01:45:01 +00:00 committed by David S. Miller
parent f8f4f61a5a
commit 2f7a312230
2 changed files with 3 additions and 3 deletions
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2
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
View File

@ -2934,9 +2934,9 @@ int bnx2x_nic_unload(struct bnx2x *bp, int unload_mode, bool keep_link)
bnx2x_free_fp_mem_cnic(bp);
if (IS_PF(bp)) {
bnx2x_free_mem(bp);
if (CNIC_LOADED(bp))
bnx2x_free_mem_cnic(bp);
bnx2x_free_mem(bp);
}
bp->state = BNX2X_STATE_CLOSED;
bp->cnic_loaded = false;

4
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
View File

@ -7786,7 +7786,7 @@ int bnx2x_alloc_mem_cnic(struct bnx2x *bp)
sizeof(struct
host_hc_status_block_e1x));
if (CONFIGURE_NIC_MODE(bp))
if (CONFIGURE_NIC_MODE(bp) && !bp->t2)
/* allocate searcher T2 table, as it wan't allocated before */
BNX2X_PCI_ALLOC(bp->t2, &bp->t2_mapping, SRC_T2_SZ);
@ -7809,7 +7809,7 @@ int bnx2x_alloc_mem(struct bnx2x *bp)
{
int i, allocated, context_size;
if (!CONFIGURE_NIC_MODE(bp))
if (!CONFIGURE_NIC_MODE(bp) && !bp->t2)
/* allocate searcher T2 table */
BNX2X_PCI_ALLOC(bp->t2, &bp->t2_mapping, SRC_T2_SZ);