From: Arnd Bergmann <a...@arndb.de>

Calling a function through an incompatible pointer type causes breaks
kcfi, so clang warns about the assignment:

drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c:73:10: error: cast from 
'void (*)(const void *)' to 'void (*)(void *)' converts to incompatible 
function type [-Werror,-Wcast-function-type-strict]
   73 |         .fini = (void(*)(void *))kfree,

Avoid this with a trivial wrapper.

Fixes: c39f472e9f14 ("drm/nouveau: remove symlinks, move core/ to nvkm/ (no 
code changes)")
Signed-off-by: Arnd Bergmann <a...@arndb.de>
---
v2: avoid 'return kfree()' expression returning a void
---
 drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c 
b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
index 4bf486b57101..cb05f7f48a98 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/bios/shadowof.c
@@ -66,11 +66,16 @@ of_init(struct nvkm_bios *bios, const char *name)
        return ERR_PTR(-EINVAL);
 }
 
+static void of_fini(void *p)
+{
+       kfree(p);
+}
+
 const struct nvbios_source
 nvbios_of = {
        .name = "OpenFirmware",
        .init = of_init,
-       .fini = (void(*)(void *))kfree,
+       .fini = of_fini,
        .read = of_read,
        .size = of_size,
        .rw = false,
-- 
2.39.2

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