Commit 061a320b authored Mar 10, 2020 by Srinivas Kandagatla Committed by Greg Kroah-Hartman Mar 19, 2020

nvmem: core: validate nvmem config before parsing



nvmem provider has to provide either reg_read/write, add a check
to enforce this.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20200310132257.23358-9-srinivas.kandagatla@linaro.org


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent a9c3766c

drivers/nvmem/core.c

+3 −0

Original line number	Diff line number	Diff line
		@@ -339,6 +339,9 @@ struct nvmem_device nvmem_register(const struct nvmem_config config)
		if (!config->dev)
		return ERR_PTR(-EINVAL);

		if (!config->reg_read && !config->reg_write)
		return ERR_PTR(-EINVAL);

		nvmem = kzalloc(sizeof(*nvmem), GFP_KERNEL);
		if (!nvmem)
		return ERR_PTR(-ENOMEM);

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