This is a note to let you know that I've just added the patch titled powerpc/kexec: Fix build failure from uninitialised variable to the 5.18-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: powerpc-kexec-fix-build-failure-from-uninitialised-variable.patch and it can be found in the queue-5.18 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 83ee9f23763a432a4077bf20624ee35de87bce99 Mon Sep 17 00:00:00 2001 From: Russell Currey <ruscur@xxxxxxxxxx> Date: Wed, 10 Aug 2022 15:43:31 +1000 Subject: powerpc/kexec: Fix build failure from uninitialised variable From: Russell Currey <ruscur@xxxxxxxxxx> commit 83ee9f23763a432a4077bf20624ee35de87bce99 upstream. clang 14 won't build because ret is uninitialised and can be returned if both prop and fdtprop are NULL. Drop the ret variable and return an error in that failure case. Fixes: b1fc44eaa9ba ("pseries/iommu/ddw: Fix kdump to work in absence of ibm,dma-window") Suggested-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx> Signed-off-by: Russell Currey <ruscur@xxxxxxxxxx> Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx> Link: https://lore.kernel.org/r/20220810054331.373761-1-ruscur@xxxxxxxxxx Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/powerpc/kexec/file_load_64.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) --- a/arch/powerpc/kexec/file_load_64.c +++ b/arch/powerpc/kexec/file_load_64.c @@ -1043,17 +1043,17 @@ static int copy_property(void *fdt, int const char *propname) { const void *prop, *fdtprop; - int len = 0, fdtlen = 0, ret; + int len = 0, fdtlen = 0; prop = of_get_property(dn, propname, &len); fdtprop = fdt_getprop(fdt, node_offset, propname, &fdtlen); if (fdtprop && !prop) - ret = fdt_delprop(fdt, node_offset, propname); + return fdt_delprop(fdt, node_offset, propname); else if (prop) - ret = fdt_setprop(fdt, node_offset, propname, prop, len); - - return ret; + return fdt_setprop(fdt, node_offset, propname, prop, len); + else + return -FDT_ERR_NOTFOUND; } static int update_pci_dma_nodes(void *fdt, const char *dmapropname) Patches currently in stable-queue which might be from ruscur@xxxxxxxxxx are queue-5.18/powerpc-kexec-fix-build-failure-from-uninitialised-variable.patch