On Wed, Mar 18, 2026 at 11:02:51AM +0000, Anas Iqbal wrote:

The uniphier_clk_mux_get_parent() function returns a u8, but
propagates negative error codes such as -EINVAL and regmap_read()
failures. These values are implicitly converted to large unsigned
integers, resulting in invalid parent indices.

The clk_ops.get_parent() callback is expected to return a valid
parent index and does not support error codes. Fix this by returning
0 as a safe fallback in error cases.

Fixes: 734d82f4a678 ("clk: uniphier: add core support code for UniPhier clock driver")
Signed-off-by: Anas Iqbal <redacted>

Reviewed-by: Brian Masney <bmasney@redhat.com>