[PATCH] mtd: rawnand: Fix probe failure due to of_get_nand_secure_regions()

[Miquel Raynal]

On Tue, 2021-07-27 at 06:28:13 UTC, Manivannan Sadhasivam wrote:
> Due to 14f97f0b8e2b, the rawnand platforms without "secure-regions"
> property defined in DT fails to probe. The issue is,
> of_get_nand_secure_regions() errors out if
> of_property_count_elems_of_size() returns a negative error code.
> 
> If the "secure-regions" property is not present in DT, then also we'll
> get -EINVAL from of_property_count_elems_of_size() but it should not
> be treated as an error for platforms not declaring "secure-regions"
> in DT.
> 
> So fix this behaviour by checking for the existence of that property in
> DT and return 0 if it is not present.
> 
> Fixes: 14f97f0b8e2b ("mtd: rawnand: Add a check in of_get_nand_secure_regions()")
> Reported-by: Martin Kaiser <martin at kaiser.cx>
> Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
> Reviewed-by: Martin Kaiser <martin at kaiser.cx>
> Tested-by: Martin Kaiser <martin at kaiser.cx>

Applied to https://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux.git mtd/fixes, thanks.

Miquel