Commit graph

4 commits

Author SHA1 Message Date
Zijun Hu
020b2c03c9 devres: Fix memory leakage caused by driver API devm_free_percpu()
[ Upstream commit bd50a974097bb82d52a458bd3ee39fb723129a0c ]

It will cause memory leakage when use driver API devm_free_percpu()
to free memory allocated by devm_alloc_percpu(), fixed by using
devres_release() instead of devres_destroy() within devm_free_percpu().

Fixes: ff86aae3b411 ("devres: add devm_alloc_percpu()")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/1719931914-19035-3-git-send-email-quic_zijuhu@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:19 +01:00
Andy Shevchenko
8d5d62274e driver core: Cast to (void *) with __force for __percpu pointer
[ Upstream commit d7aa44f5a1f86cb40659eef06035d8d92604b9d5 ]

Sparse is not happy:

  drivers/base/devres.c:1230:9: warning: cast removes address space '__percpu' of expression

Use __force attribute to make it happy.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210401171030.60527-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: bd50a974097b ("devres: Fix memory leakage caused by driver API devm_free_percpu()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:20:19 +01:00
Zijun Hu
f77fd98aaa devres: Fix devm_krealloc() wasting memory
commit c884e3249f753dcef7a2b2023541ac1dc46b318e upstream.

Driver API devm_krealloc() calls alloc_dr() with wrong argument
@total_new_size, so causes more memory to be allocated than required
fix this memory waste by using @new_size as the argument for alloc_dr().

Fixes: f82485722e5d ("devres: provide devm_krealloc()")
Cc: stable@vger.kernel.org
Signed-off-by: Zijun Hu <quic_zijuhu@quicinc.com>
Link: https://lore.kernel.org/r/1719931914-19035-2-git-send-email-quic_zijuhu@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2024-11-23 23:20:14 +01:00
Gabriel2392
7ed7ee9edf Import A536BXXU9EXDC 2024-06-15 16:02:09 -03:00