Messages in this thread Patch in this message | | | From | Jiasheng Jiang <> | Subject | [PATCH] libnvdimm: Add check for nd_dax_alloc | Date | Tue, 22 Nov 2022 10:33:50 +0800 |
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As the nd_dax_alloc may return NULL pointer, it should be better to add check for the return value, as same as the one in nd_dax_create().
Fixes: c5ed9268643c ("libnvdimm, dax: autodetect support") Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn> --- drivers/nvdimm/dax_devs.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/nvdimm/dax_devs.c b/drivers/nvdimm/dax_devs.c index 7f4a9d28b670..9efe62b95dd8 100644 --- a/drivers/nvdimm/dax_devs.c +++ b/drivers/nvdimm/dax_devs.c @@ -106,6 +106,8 @@ int nd_dax_probe(struct device *dev, struct nd_namespace_common *ndns) nvdimm_bus_lock(&ndns->dev); nd_dax = nd_dax_alloc(nd_region); + if (!nd_dax) + return -ENOMEM; nd_pfn = &nd_dax->nd_pfn; dax_dev = nd_pfn_devinit(nd_pfn, ndns); nvdimm_bus_unlock(&ndns->dev); -- 2.25.1
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