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| author | Tomas Henzl <thenzl@redhat.com> | 2012-02-13 18:29:58 +0100 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-02-19 09:37:10 -0600 |
| commit | c834b1c4ec8ccc9c2d814bd78264b509708fe6dd (patch) | |
| tree | c79fad5e2479be7ab47e3956ce699363900e15f8 /drivers/scsi/mpt2sas | |
| parent | cf3059a12936f8e92876e56b50bcdb092be70645 (diff) | |
| download | blackbird-obmc-linux-c834b1c4ec8ccc9c2d814bd78264b509708fe6dd.tar.gz blackbird-obmc-linux-c834b1c4ec8ccc9c2d814bd78264b509708fe6dd.zip | |
[SCSI] mpt2sas: add missing allocation check
The __get_free_pages can fail, so the return value should be checked.
Spotted thanks to Stanislaw.
Signed-off-by: Tomas Henzl <thenzl@redhat.com>
Acked-by: "Nandigama, Nagalakshmi" <Nagalakshmi.Nandigama@lsi.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/mpt2sas')
| -rw-r--r-- | drivers/scsi/mpt2sas/mpt2sas_base.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c index a78036f5e1a6..82fa6ce481f0 100644 --- a/drivers/scsi/mpt2sas/mpt2sas_base.c +++ b/drivers/scsi/mpt2sas/mpt2sas_base.c @@ -2575,6 +2575,11 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc, int sleep_flag) ioc->chain_lookup = (struct chain_tracker *)__get_free_pages( GFP_KERNEL, ioc->chain_pages); + if (!ioc->chain_lookup) { + printk(MPT2SAS_ERR_FMT "chain_lookup: get_free_pages failed, " + "sz(%d)\n", ioc->name, (int)sz); + goto out; + } ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev, ioc->request_sz, 16, 0); if (!ioc->chain_dma_pool) { |
