From: Lu Wei luwei32@huawei.com
[ Upstream commit bde82ee391fa6d3ad054313c4aa7b726d32515ce ]
If KMEM_CACHE or maple_alloc_dev failed, the maple_bus_init() will return 0 rather than error, because the retval is not changed after KMEM_CACHE or maple_alloc_dev failed.
Fixes: 17be2d2b1c33 ("sh: Add maple bus support for the SEGA Dreamcast.") Reported-by: Hulk Robot hulkci@huawei.com Signed-off-by: Lu Wei luwei32@huawei.com Acked-by: John Paul Adrian Glaubitz glaubitz@physik.fu-berlin.de Signed-off-by: Rich Felker dalias@libc.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/sh/maple/maple.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/sh/maple/maple.c b/drivers/sh/maple/maple.c index e5d7fb81ad665..44a931d41a132 100644 --- a/drivers/sh/maple/maple.c +++ b/drivers/sh/maple/maple.c @@ -835,8 +835,10 @@ static int __init maple_bus_init(void)
maple_queue_cache = KMEM_CACHE(maple_buffer, SLAB_HWCACHE_ALIGN);
- if (!maple_queue_cache) + if (!maple_queue_cache) { + retval = -ENOMEM; goto cleanup_bothirqs; + }
INIT_LIST_HEAD(&maple_waitq); INIT_LIST_HEAD(&maple_sentq); @@ -849,6 +851,7 @@ static int __init maple_bus_init(void) if (!mdev[i]) { while (i-- > 0) maple_free_dev(mdev[i]); + retval = -ENOMEM; goto cleanup_cache; } baseunits[i] = mdev[i];