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| author | Easwar Hariharan | 2015-12-10 17:13:38 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman | 2015-12-21 23:00:17 +0100 |
| commit | 859bcad9c2c5487dd74d4cfbdcbdd6c63a0ca955 (patch) | |
| tree | 197b962b1dcdab64c9e7afcb00348010e51e967b /drivers/staging/rdma/hfi1/chip.c | |
| parent | staging/rdma/hfi1: HFI now sends OPA Traps instead of IBTA (diff) | |
| download | kernel-qcow2-linux-859bcad9c2c5487dd74d4cfbdcbdd6c63a0ca955.tar.gz kernel-qcow2-linux-859bcad9c2c5487dd74d4cfbdcbdd6c63a0ca955.tar.xz kernel-qcow2-linux-859bcad9c2c5487dd74d4cfbdcbdd6c63a0ca955.zip | |
staging/rdma/hfi1: Fix a possible null pointer dereference
A code inspection pointed out that kmalloc_array may return NULL and
memset doesn't check the input pointer for NULL, resulting in a possible
NULL dereference. This patch fixes this.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/rdma/hfi1/chip.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/chip.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/rdma/hfi1/chip.c b/drivers/staging/rdma/hfi1/chip.c index d88945a80250..371f13fec68d 100644 --- a/drivers/staging/rdma/hfi1/chip.c +++ b/drivers/staging/rdma/hfi1/chip.c @@ -13358,6 +13358,8 @@ static void init_qos(struct hfi1_devdata *dd, u32 first_ctxt) if (num_vls * qpns_per_vl > dd->chip_rcv_contexts) goto bail; rsmmap = kmalloc_array(NUM_MAP_REGS, sizeof(u64), GFP_KERNEL); + if (!rsmmap) + goto bail; memset(rsmmap, rxcontext, NUM_MAP_REGS * sizeof(u64)); /* init the local copy of the table */ for (i = 0, ctxt = first_ctxt; i < num_vls; i++) { |