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Guangshuo Li
a9e6aa9949
devm_kcalloc() may fail. ndtest_probe() allocates three DMA address
arrays (dcr_dma, label_dma, dimm_dma) and later unconditionally uses
them in ndtest_nvdimm_init(), which can lead to a NULL pointer
dereference under low-memory conditions.
Check all three allocations and return -ENOMEM if any allocation fails,
jumping to the common error path. Do not emit an extra error message
since the allocator already warns on allocation failure.
Fixes: 9399ab61ad ("ndtest: Add dimms to the two buses")
Cc: [email protected]
Signed-off-by: Guangshuo Li <[email protected]>
Reviewed-by: Alison Schofield <[email protected]>
Reviewed-by: Ira Weiny <[email protected]>
Reviewed-by: Dave Jiang <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>