common/sfc_efx/base: fix dereferencing null pointer
In function efx_pci_xilinx_cap_tbl_find, pointer entry_offsetp is used before null pointer check, which may cause access to null pointer. This patch fix this problem. Fixes: ba9568b8b4b7 ("common/sfc_efx/base: add Xilinx capabilities table lookup") Cc: stable@dpdk.org Signed-off-by: Hongbo Zheng <zhenghongbo3@huawei.com> Signed-off-by: Min Hu (Connor) <humin29@huawei.com> Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
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@ -310,7 +310,7 @@ efx_pci_xilinx_cap_tbl_find(
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__in boolean_t skip_first,
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__inout efsys_dma_addr_t *entry_offsetp)
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{
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efsys_dma_addr_t offset = *entry_offsetp;
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efsys_dma_addr_t offset;
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boolean_t skip = skip_first;
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efx_qword_t header;
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uint32_t format;
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@ -322,6 +322,7 @@ efx_pci_xilinx_cap_tbl_find(
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goto fail1;
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}
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offset = *entry_offsetp;
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rc = ENOENT;
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/*
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* SF-119689-TC Riverhead Host Interface section 4.2.2.
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