The local variable ranges may be used uninitialised if the function fdt_get_dma_range is called with node < 0. Ensure this does not happen by initialising ranges when declared.
This issue was found with Smatch. Signed-off-by: Andrew Goodbody <[email protected]> --- boot/fdt_support.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/boot/fdt_support.c b/boot/fdt_support.c index 92f2f534ee0..4f63ce9a763 100644 --- a/boot/fdt_support.c +++ b/boot/fdt_support.c @@ -1547,7 +1547,7 @@ int fdt_get_dma_range(const void *blob, int node, phys_addr_t *cpu, { bool found_dma_ranges = false; struct of_bus *bus_node; - const fdt32_t *ranges; + const fdt32_t *ranges = NULL; int na, ns, pna, pns; int parent = node; int ret = 0; --- base-commit: 359e3012921f2fc2d43f3c4e320a752173f82b82 change-id: 20250627-boot_fdt_fix-e4e56d956c8a Best regards, -- Andrew Goodbody <[email protected]>
