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commitc8222ef6cfupstream. soc_dev_attr->revision could be NULL, thus, a pointer check is added to prevent potential NULL pointer dereference. This is similar to the fix in commit3027e7b15b("ice: Fix some null pointer dereference issues in ice_ptp.c"). This issue is found by our static analysis tool. Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com> Link: https://lore.kernel.org/r/20250212213518.69432-1-chenyuan0y@gmail.com Fixes:3253b7b7cd("soc: samsung: Add exynos chipid driver support") Cc: <stable@vger.kernel.org> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>